Some Ai models failed to download. Please try again later

I had a problem with Lightroom Classic where the AI models would download but repeatedly get stuck at 99%. AI masking features such as Select Subject and Select People consequently failed.

After quite a bit of investigation, this turned out not to be a simple permissions or GPU problem.

System:

• Windows 11

• Lightroom Classic 15.6

• NVIDIA GeForce RTX 3080 Laptop GPU

I checked the Lightroom/Camera Raw ModelZoo folder at:

C:\Users<username>\AppData\Roaming\Adobe\CameraRaw\ModelZoo

My Windows account had read/write access and Lightroom was successfully creating the CloudDownload folder, Index.dat, manifests and substantial AI model files. For example, the People model (people_1014_fp16.data) was present at around 77 MB.

The Camera Raw/Lightroom logs were particularly useful. They can be found under:

C:\Users<username>\AppData\Roaming\Adobe\CameraRaw\Logs

The logs showed model downloads subsequently failing validation. In particular, there were errors along the lines of:

*** Error: Failed to validate the tmp file.

The downloads appeared to be slightly short of their expected sizes, despite the download request itself apparently succeeding. This explained why Lightroom could look as though it had almost completely downloaded a model but then fail to install/use it.

The breakthrough was trying the download while connected through a VPN.

I connected through a VPN endpoint in the Netherlands, restarted Lightroom and allowed it to download the models again. This time the download completed successfully and the AI functionality worked.

So, if Lightroom Classic AI model downloads repeatedly stick at 99%, particularly if deleting/re-downloading the models doesn't help, it may be worth trying a different network route or a VPN before reinstalling Lightroom or changing GPU drivers.

In my case, the evidence suggests the problem was somewhere in the normal network/CDN download path rather than Lightroom being unable to write to ModelZoo or run the AI models. The VPN changes several variables at once, so I can't say whether the underlying cause was ISP routing, Adobe CDN selection, DNS, IPv6 or something else.

The useful diagnostic sequence for me was:

1. Check read/write access to the CameraRaw\ModelZoo folder.

2. Check that model .data files and manifest.json files are actually being created.

3. Look in the Camera Raw logs for Failed to validate the tmp file.

4. If downloads repeatedly reach 99% and then fail validation, try downloading the models over a different connection or VPN.

Hopefully this saves someone else from repeatedly deleting ModelZoo or reinstalling Lightroom when the problem may actually be with the download path.

Am having the same issues in both Lightroom & photoshop after  the recent updates.

I am having the exact same problem - it is proving to be a massive issue in my commercial work which is impacting client delivery severely!  I am going to have to actively investigate alternative software if this persists more than another day or two!!!

Tried all the suggested remedies and nothing is working.

System details are as follows:

 

Lightroom Classic version: 15.6 [ 202609251514-f839cde9 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 11 - Business Edition
Version: 11.0.22631
Application architecture: x64
System architecture: x64
Logical processor count: 32
Processor speed: 4.1GHz
SqLite Version: 3.45.1
Adobe GSDK Version: 1.4.0.213

CPU Utilisation: 0.0%
Power Source: Plugged In
Built-in memory: 64656.4 MB
Dedicated GPU memory used by Lightroom: 17217.1MB / 24517.2MB (70%)
Real memory available to Lightroom: 64656.4 MB
Real memory used by Lightroom: 13288.7 MB (20.5%)
Virtual memory used by Lightroom: 31101.2 MB
GDI objects count: 929
USER objects count: 2864
Process handles count: 3800
Memory cache size: 1361.6MB
Internal Camera Raw version: 18.7 [ 2743 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1770MB / 32328MB (5%)
Camera Raw real memory: 2141MB / 64656MB (3%)

Cache1: 
NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

Cache2: 
m:1361.6MB, n:0.0MB

U-main: 228.0MB

System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
Standard Preview Size: 3840 pixels
Displays: 1) 3840x2160
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 
DirectX: AMD Radeon RX 7900 XTX (32.0.31041.1004)
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S5_23)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: D:\Lightroom\2026 Rebuilt 2\2026 Rebuilt 2.lrcat
Settings Folder: C:\Users\rob\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 
1) AdobeStock
2) Flickr

Config.lua flags: 
Adapter #1: Vendor : 1002
    Device : 744c
    Subsystem : 53041849
    Revision : c8
    Video Memory : 24517
Adapter #2: Vendor : 1002
    Device : 164e
    Subsystem : 88771043
    Revision : c9
    Video Memory : 1e5
Adapter #3: Vendor : 1414
    Device : 8c
    Subsystem : 0
    Revision : 0
    Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: System Default - 1 - AORUS FO48U (2- AMD High Definition Audio Device)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x31
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 0
GL_ACCUM_BLUE_BITS: 0
GL_ACCUM_GREEN_BITS: 0
GL_ACCUM_RED_BITS: 0
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 32
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 8192
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: AMD Radeon RX 7900 XTX
GL_SHADING_LANGUAGE_VERSION: 4.60
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 4.6.0 Compatibility Profile Context 26.8.1.260810
GPUDeviceEnabled: false
OGLEnabled: true
GL_EXTENSIONS: GL_EXT_abgr GL_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_copy_texture GL_EXT_texture GL_EXT_texture_object GL_EXT_vertex_array GL_EXT_compiled_vertex_array GL_EXT_subtexture GL_EXT_texture3D GL_EXT_bgra GL_EXT_draw_range_elements GL_EXT_packed_pixels GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_separate_specular_color GL_EXT_texture_edge_clamp GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_ARB_multitexture GL_IBM_texture_mirrored_repeat GL_AMD_debug_output GL_ARB_multisample GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_transpose_matrix GL_EXT_blend_func_separate GL_EXT_fog_coord GL_EXT_multi_draw_arrays GL_EXT_secondary_color GL_EXT_texture_cube_map GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_NV_blend_square GL_NV_texgen_reflection GL_SUN_multi_draw_arrays WGL_EXT_swap_control GL_ARB_point_parameters GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_env_crossbar GL_EXT_texture_compression_s3tc GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_ARB_shadow GL_ARB_shadow_ambient GL_ARB_texture_env_combine GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_NV_half_float GL_ARB_depth_texture GL_ARB_fragment_program GL_ARB_vertex_program GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_EXT_texture_rectangle GL_NV_primitive_restart GL_S3_s3tc GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_occlusion_query GL_ARB_point_sprite GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_texture_non_power_of_two GL_ARB_vertex_buffer_object GL_ARB_vertex_shader GL_EXT_blend_equation_separate GL_EXT_depth_bounds_test GL_ARB_color_buffer_float GL_ARB_draw_buffers GL_ARB_half_float_pixel GL_ARB_pixel_buffer_object GL_ARB_texture_float GL_ARB_texture_rectangle GL_EXT_framebuffer_object GL_EXT_pixel_buffer_object GL_EXT_texture_mirror_clamp GL_NV_float_buffer GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_packed_depth_stencil GL_ATI_separate_stencil GL_ATI_shader_texture_lod GL_ATI_texture_mirror_once GL_EXT_bindable_uniform GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_packed_float GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_integer GL_EXT_transform_feedback GL_NV_depth_buffer_float GL_OES_EGL_image GL_EXT_provoking_vertex GL_EXT_texture_sRGB GL_EXT_texture_shared_exponent GL_EXT_vertex_array_bgra GL_NV_conditional_render GL_ARB_depth_buffer_float GL_ARB_draw_instanced GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_map_buffer_range GL_ARB_texture_buffer_object GL_ARB_texture_compression_rgtc GL_ARB_texture_rg GL_ARB_transform_feedback GL_ARB_vertex_array_object GL_EXT_direct_state_access GL_EXT_texture_snorm GL_EXT_texture_swizzle GL_AMD_conservative_depth GL_AMD_seamless_cubemap_per_texture GL_AMD_texture_cube_map_array GL_ARB_compatibility GL_ARB_copy_buffer GL_ARB_depth_clamp GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_fragment_coord_conventions GL_ARB_provoking_vertex GL_ARB_sample_shading GL_ARB_seamless_cube_map GL_ARB_shader_texture_lod GL_ARB_sync GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_multisample GL_ARB_texture_multisample_no_array GL_ARB_texture_query_lod GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ATI_meminfo GL_EXT_texture_storage GL_NV_copy_image GL_NV_texture_barrier GL_AMD_blend_minmax_factor GL_AMD_depth_clamp_separate GL_AMD_sample_positions GL_ARB_ES2_compatibility GL_ARB_base_instance GL_ARB_blend_func_extended GL_ARB_compressed_texture_pixel_storage GL_ARB_debug_output GL_ARB_draw_indirect GL_ARB_explicit_attrib_location GL_ARB_get_program_binary GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_occlusion_query2 GL_ARB_robustness GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_precision GL_ARB_shader_stencil_export GL_ARB_shader_subroutine GL_ARB_shading_language_packing GL_ARB_tessellation_shader GL_ARB_texture_compression_bptc GL_ARB_texture_rgb10_a2ui GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_shader_image_load_store GL_EXT_texture_sRGB_decode GL_EXT_vertex_attrib_64bit GL_AMD_multi_draw_indirect GL_AMD_pinned_memory GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ARB_conservative_depth GL_ARB_internalformat_query GL_ARB_shader_atomic_counters GL_ARB_shader_image_load_store GL_ARB_shading_language_420pack GL_ARB_texture_storage GL_ARB_transform_feedback_instanced GL_EXT_debug_label GL_AMD_query_buffer_object GL_AMD_shader_trinary_minmax GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_clear_buffer_object GL_ARB_compute_shader GL_ARB_copy_image GL_ARB_explicit_uniform_location GL_ARB_fragment_layer_viewport GL_ARB_framebuffer_no_attachments GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_multi_draw_indirect GL_ARB_program_interface_query GL_ARB_shader_image_size GL_ARB_shader_storage_buffer_object GL_ARB_stencil_texturing GL_ARB_texture_buffer_range GL_ARB_texture_query_levels GL_ARB_texture_storage_multisample GL_ARB_texture_view GL_ARB_vertex_attrib_binding GL_EXT_copy_buffer GL_KHR_debug GL_KHR_texture_compression_astc_ldr GL_AMD_gpu_shader_half_float GL_AMD_gpu_shader_int64 GL_ARB_ES3_1_compatibility GL_ARB_bindless_texture GL_ARB_buffer_storage GL_ARB_clear_texture GL_ARB_enhanced_layouts GL_ARB_indirect_parameters GL_ARB_multi_bind GL_ARB_query_buffer_object GL_ARB_seamless_cubemap_per_texture GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_sparse_texture GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_stencil8 GL_ARB_vertex_type_10f_11f_11f_rev GL_EXT_shader_integer_mix GL_EXT_timer_query GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_NV_shader_atomic_int64 GL_ARB_clip_control GL_ARB_conditional_render_inverted GL_ARB_cull_distance GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_get_texture_sub_image GL_ARB_pipeline_statistics_query GL_ARB_shader_texture_image_samples GL_ARB_sparse_buffer GL_ARB_texture_barrier GL_ARB_transform_feedback_overflow_query GL_EXT_polygon_offset_clamp GL_EXT_shader_image_load_formatted GL_KHR_context_flush_control GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_OVR_multiview GL_ARB_ES3_2_compatibility GL_ARB_fragment_shader_interlock GL_ARB_gpu_shader_int64 GL_ARB_parallel_shader_compile GL_ARB_post_depth_coverage GL_ARB_sample_locations GL_ARB_shader_atomic_counter_ops GL_ARB_shader_ballot GL_ARB_shader_clock GL_ARB_shader_viewport_layer_array GL_ARB_texture_filter_minmax GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_RG8 GL_EXT_texture_shadow_lod GL_KHR_no_error GL_OVR_multiview2 GL_ARB_gl_spirv GL_EXT_memory_object GL_EXT_memory_object_win32 GL_EXT_semaphore GL_EXT_semaphore_win32 GL_AMD_gpu_shader_int16 GL_ARB_polygon_offset_clamp GL_ARB_spirv_extensions GL_ARB_texture_filter_anisotropic GL_EXT_texture_compression_bptc GL_KHR_parallel_shader_compile GL_KHR_shader_subgroup GL_EXT_nonuniform_qualifier GL_NV_mesh_shader GL_NV_timeline_semaphore

The AI models downloaded again.
Finally the update of processing the image is complete. I was also able to export it.
 

I restarted Lightroom and it is again trying to download AI models. So we seem to be back to square one.

LR says AI download is successful BUT now it says:

Hi, still no joy. 

 

Lightroom Classic version: 15.6 [ 202609251514-f839cde9 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 11 - Business Edition
Version: 11.0.26300
Application architecture: x64
System architecture: x64
Logical processor count: 20
Processor speed: 3.8GHz
SqLite Version: 3.45.1
Adobe GSDK Version: 1.4.0.213

CPU Utilisation: 43.0%
Power Source: Plugged In
Built-in memory: 64978.1 MB
Dedicated GPU memory used by Lightroom: 3463.5MB / 7895.0MB (43%)
Real memory available to Lightroom: 64978.1 MB
Real memory used by Lightroom: 6121.1 MB (9.4%)
Virtual memory used by Lightroom: 10530.8 MB
GDI objects count: 1027
USER objects count: 3245
Process handles count: 6752
Memory cache size: 4367.7MB
Internal Camera Raw version: 18.7 [ 2743 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1720MB / 32489MB (5%)
Camera Raw real memory: 1761MB / 64978MB (2%)

Cache1: 
Final1- RAM:469.0MB, VRAM:3209.0MB, _DSC5723-HDR-Edit.tif
NT- RAM:469.0MB, VRAM:3209.0MB, Combined:3678.0MB

Cache2: 
m:4367.7MB, n:191.2MB

U-main: 95.0MB

System DPI setting: 120 DPI
Desktop composition enabled: Yes
Standard Preview Size: 2560 pixels
Displays: 1) 2560x1440
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 
DirectX: NVIDIA GeForce RTX 5060 (32.0.16.1692)
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S5_7)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\Stewart\Pictures\Lightroom\Lightroom Catalog-2-2-v13-3.lrcat
Settings Folder: C:\Users\Stewart\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 
1) AdobeStock
2) Flickr
3) Helicon Focus Export
4) Luminar Neo
5) Nik 8 HDR Efex
6) Plugin Parameters

Config.lua flags: 
Adapter #1: Vendor : 10de
    Device : 2d05
    Subsystem : 41a21458
    Revision : a1
    Video Memory : 7895
Adapter #2: Vendor : 8086
    Device : 7d67
    Subsystem : d0001458
    Revision : 6
    Video Memory : 80
Adapter #3: Vendor : 1414
    Device : 8c
    Subsystem : 0
    Revision : 0
    Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: System Default - Realtek Digital Output (Realtek(R) Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x31
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 0
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 32768
GL_MAX_TEXTURE_UNITS: 4
GL_MAX_VIEWPORT_DIMS: 32768,32768
GL_RED_BITS: 8
GL_RENDERER: NVIDIA GeForce RTX 5060/PCIe/SSE2
GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA
GL_STENCIL_BITS: 8
GL_VENDOR: NVIDIA Corporation
GL_VERSION: 4.6.0 NVIDIA 616.92
GPUDeviceEnabled: false
OGLEnabled: true
GL_EXTENSIONS: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_AMD_vertex_shader_viewport_index GL_AMD_vertex_shader_layer GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_2_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_fragment_shader_interlock GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gl_spirv GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader_int64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_parallel_shader_compile GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_polygon_offset_clamp GL_ARB_post_depth_coverage GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_query_buffer_object GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_locations GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counter_ops GL_ARB_shader_atomic_counters GL_ARB_shader_ballot GL_ARB_shader_bit_encoding GL_ARB_shader_clock GL_EXT_shader_realtime_clock GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shader_viewport_layer_array GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_sparse_buffer GL_ARB_sparse_texture GL_ARB_sparse_texture2 GL_ARB_sparse_texture_clamp GL_ARB_spirv_extensions GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_filter_anisotropic GL_ARB_texture_filter_minmax GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_multiview_texture_multisample GL_EXT_multiview_timer_query GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset_clamp GL_EXT_post_depth_coverage GL_EXT_provoking_vertex GL_EXT_raster_multisample GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_formatted GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_sparse_texture2 GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_filter_minmax GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shadow_lod GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_window_rectangles GL_EXT_import_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_context_flush_control GL_KHR_debug GL_EXT_memory_object GL_EXT_memory_object_win32 GL_NV_memory_object_sparse GL_EXT_win32_keyed_mutex GL_KHR_parallel_shader_compile GL_KHR_no_error GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_EXT_semaphore GL_EXT_semaphore_win32 GL_NV_timeline_semaphore GL_KHR_shader_subgroup GL_KTX_buffer_region GL_NV_alpha_to_coverage_dither_control GL_NV_bindless_multi_draw_indirect GL_NV_bindless_multi_draw_indirect_count GL_NV_bindless_texture GL_NV_blend_equation_advanced GL_NV_blend_equation_advanced_coherent GL_NVX_blend_equation_advanced_multi_draw_buffers GL_NV_blend_minmax_factor GL_NV_blend_square GL_NV_clip_space_w_scaling GL_NV_command_list GL_NV_compute_program5 GL_NV_compute_shader_derivatives GL_NV_conditional_render GL_NV_conservative_raster GL_NV_conservative_raster_dilate GL_NV_conservative_raster_pre_snap GL_NV_conservative_raster_pre_snap_triangles GL_NV_conservative_raster_underestimation GL_NV_copy_depth_to_color GL_NV_copy_image GL_NV_depth_buffer_float GL_NV_depth_clamp GL_NV_draw_texture GL_NV_draw_vulkan_image GL_NV_ES1_1_compatibility GL_NV_ES3_1_compatibility GL_NV_explicit_multisample GL_NV_feature_query GL_NV_fence GL_NV_fill_rectangle GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_coverage_to_color GL_NV_fragment_program GL_NV_fragment_program_option GL_NV_fragment_program2 GL_NV_fragment_shader_barycentric GL_NV_fragment_shader_interlock GL_NV_framebuffer_mixed_samples GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4 GL_NV_geometry_shader_passthrough GL_NV_gpu_program4 GL_NV_internalformat_sample_query GL_NV_gpu_program4_1 GL_NV_gpu_program5 GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_program_multiview GL_NV_gpu_shader5 GL_NV_half_float GL_NV_light_max_exponent GL_NV_memory_attachment GL_NV_mesh_shader GL_NV_multisample_coverage GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_path_rendering_shared_edge GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_primitive_shading_rate GL_NV_query_resource GL_NV_query_resource_tag GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_representative_fragment_test GL_NV_sample_locations GL_NV_sample_mask_override_coverage GL_NV_scissor_exclusive GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_atomic_float64 GL_NV_shader_atomic_fp16_vector GL_NV_shader_atomic_int64 GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_shader_subgroup_partitioned GL_NV_shader_texture_footprint GL_NV_shading_rate_image GL_NV_stereo_view_rendering GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_compression_vtc GL_NV_texture_dirty_tile_map GL_NV_texture_env_combine4 GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_rectangle_compressed GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_uniform_buffer_unified_memory GL_NV_uniform_buffer_std430_layout GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NV_viewport_array2 GL_NV_viewport_swizzle GL_NVX_conditional_render GL_NVX_linked_gpu_multicast GL_NV_gpu_multicast GL_NVX_gpu_multicast2 GL_NVX_progress_fence GL_NVX_gpu_memory_info GL_NVX_multigpu_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_OVR_multiview GL_OVR_multiview2 GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum GL_WIN_swap_hint WGL_EXT_swap_control 

Hi @stewart_1362 & @DhandaNot,

Thanks for reporting this. I understand how disruptive this is when presets and AI edits can’t access the required models.

@stewart_1362, please first update Lightroom Classic to 15.6 from the Creative Cloud desktop app.

If the issue continues, completely quit Lightroom Classic and Creative Cloud, then reset the locally stored AI models:

Windows:
%APPDATA%\Adobe\CameraRaw\ModelZoo
C:\ProgramData\Adobe\CameraRaw\ModelZoo

Rename any ModelZoo folder you find to ModelZoo.old, then relaunch Creative Cloud and Lightroom Classic and try again.

If you’re on Windows and it still fails, right-click the Creative Cloud desktop app > Run as administrator, launch Lightroom Classic from there, and retry the AI model download.

If neither step helps, please go to Lightroom Classic > Help > System Info, copy the complete information, and share it here so we can investigate further.

Please let us know how it goes, and we’ll be happy to help further.

Best,
Anshul Saini

I am using Lightroom Classic 15.6, it prompts me to download AI models. The progress bar shows 100% but when I use AI Edit Update it says (in a red banner) that AI models failed to download and I should try again. I have restarted LR and downloaded the AI models again. 

The problem remains.