P: Lens Blur not working since updating to LR 15

Report · Nov 21, 2025

My lens blur only works very occassionaly since updating and now almost never. It sometimes worked if I restarted but not any longer. Very frustrating.

Any help would be appreciated.

Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]
License: Creative Cloud
Language setting: en-NZ
Operating system: Mac OS 26
Version: 26.1.0 [25B78]
Application architecture: arm64
Logical processor count: 14
Processor speed: NA
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.171

Built-in memory: 24,576.0 MB
Dedicated GPU memory used by Lightroom: 2,833.1MB / 18,186.2MB (15%)
Real memory available to Lightroom: 24,576.0 MB
Real memory used by Lightroom: 5,283.4 MB (21.4%)
Virtual memory used by Lightroom: 439,435.3 MB
Memory cache size: 55.6MB
Internal Camera Raw version: 18.0 [ 2389 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 3303MB / 12287MB (26%)
Camera Raw real memory: 3454MB / 24576MB (14%)

Cache1:
Final1- RAM:3,341.0MB, VRAM:0.0MB, IMG_3185.DNG
NT- RAM:3,341.0MB, VRAM:0.0MB, Combined:3,341.0MB

Cache2:
m:55.6MB, n:383.3MB

U-main: 150.0MB

Standard Preview Size: 2048 pixels
Displays: 1) 4608x2592

Graphics Processor Info:
Metal: Apple M4 Pro
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: ON
GPU for Preview Generation: Auto (S5_17)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/stevensharp/Pictures/Lightroom/Steven/Stevens-v14-2024.lrcat
Settings Folder: /Users/stevensharp/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Canon Print Studio Pro
3) SmugMug
4) Topaz Photo (Studio)
5) Topaz Photo AI

Config.lua flags:

Report · Oct 30, 2025

Hi,

Ever since I updated to 15.0 yesterday on my windows 11, I cannot see what/how much blur I am putting on my photos in Lightroom. I'm having to export before I can tell then blindly adjust. Is there anything that can be done about this? It's driving me nuts and waisting a ton of precious time...

Report · Oct 30, 2025

Hi @ManyHatsatWork, welcome to the community!
I gave this a try on my end but wasn’t able to reproduce the issue. Just to clarify, when you apply Lens Blur, does the photo not update at all with the changes? Does this only happen with that specific tool and with a particular image?
If you can, please share a few more details, like a screenshot or a screen recording showing your workflow and where the issue comes up. That would really help us take a closer look.
Thanks so much!
Alek

*(If you mention me with an @, like @Aleke, I’ll get a notification and can respond faster.)*

Report · Oct 31, 2025

Hello, @Aleke, thank you for your response.

I've only noticed the issue when I'm trying to use the blur backround presets or manually doing them in the lens blur panel. In lightroom, the photos (any photo) appears to have no blur no matter what I do but if I export and view in Window's preview the photo has blur and very often too much so I have to blindly adjust and reexport before I can make another adjustment. Any ideas?

I have attached two minor examples here; one how it appears in lightroom and one of the exported version.

Thanks!

Report · Oct 31, 2025

Here's my Lens Blur isssue - copied from Lightroom Queen Forum :-

Re-editing some old "Favourite" photos to show on my wife's Photo frame. Working on a .jpg previously edited with Lens Blur included successfully. Removed some distractions to improve the composition. Updated AI Edit Status button and background blur was gone. Fiddled around in the Lens Blur panel trying various things even trying a reset on a virtual copy. Background not blurring and Visualise checkbox not showing the depth mask. Lens blur has always been somewhat slow on my PC which is reasonably specd.

So tried exporting the photo without edits to Photoshop Beta (latest update) and opened in ACR filter. Lens Blur worked perfectly and much more quickly than in LRc. Visualisation showed depth mask. So, cannot be a resources or hardware issue in LRc as now I am working with both LRc and Photoshop open at the same time running a dual display so can flip easily from one to the other.

Can anyone confirm if they are experiencing this behaviour in LRc 15.0?

Thanks, Barry

Attached screen shot shows no blur in background or Visualisation depth map

Report · Nov 02, 2025

I have the same problem, but it does not always appear and restarting LRC (15) seems to clear the problem for a while until a fresh restart is needed. I am on a Mac Tahoe 16.0.1. LRC 15.0.

Report · Nov 02, 2025

@Aleke

I am having the same issue after updating. Never had the problem before the update. I will be working on photos and all of a sudden the amount of blur I am applying, isn't showing in real time. I have to close the program and restart to fix. Work on a few more photos and have to close and restart the program again. I am working on Mac Sequoia 15.6.1. It is quite random. I am working on Raw files, not .jpg.

Report · Nov 09, 2025

Since updating to 15 the lens blur function no longer works. If i apply it to a photo nothing happens even after analyzing. photos that once had it applied now do not and updating AI settings isn't fixing it.

I have tried backing up and checking catalog integrity as some users have suggested but the problem is till here. I'm very close to finishing a wedding edit but this bug has put me back massively.

Report · Nov 09, 2025

the same problem for me.

Itsn ot working at all.

Report · Nov 09, 2025

There have been a few other reports about problems with Lens Blur in LR 15.

Please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

Report · Nov 10, 2025

Lightroom Classic version: 15.0 [ 202510171722-44f87028 ]

License: Creative Cloud

Language setting: en

Operating system: Windows 11 - Home Premium Edition

Version: 11.0.26200

Application architecture: x64

System architecture: x64

Logical processor count: 16

Processor speed: 3.6GHz

SqLite Version: 3.36.0

CPU Utilisation: 14.0%

Power Source: Plugged In

Built-in memory: 65460.9 MB

Dedicated GPU memory used by Lightroom: 4529.0MB / 12012.0MB (37%)

Real memory available to Lightroom: 65460.9 MB

Real memory used by Lightroom: 2225.6 MB (3.3%)

Virtual memory used by Lightroom: 7234.0 MB

GDI objects count: 773

USER objects count: 3376

Process handles count: 2917

Memory cache size: 284.3MB

Internal Camera Raw version: 18.0 [ 2389 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 459MB / 32730MB (1%)

Camera Raw real memory: 477MB / 65460MB (0%)

Cache1:

Final1- RAM:362.0MB, VRAM:3047.0MB, _DSC8411.NEF

NT- RAM:362.0MB, VRAM:3047.0MB, Combined:3409.0MB

Cache2:

m:284.3MB, n:165.1MB

U-main: 114.0MB

System DPI setting: 216 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: NVIDIA GeForce RTX 4070 (32.0.15.8180)

Init State: GPU for Export supported by default

User Preference: GPU for Image Processing Enabled

Enable HDR in Library: ON

GPU for Preview Generation: Auto (S5_11)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: C:\Users\benat\Pictures\Lightroom\Lightroom Catalog-2-v13-3.lrcat

Settings Folder: C:\Users\benat\AppData\Roaming\Adobe\Lightroom

Installed Plugins:

1) AdobeStock

2) Flickr

Config.lua flags:

Adapter #1: Vendor : 10de

Device : 2786

Subsystem : 13cd196e

Revision : a1

Video Memory : 12012

Adapter #2: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: System Default - Panasonic-TV (NVIDIA High Definition Audio)

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: Uninitialized

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 4070/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 581.80

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 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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 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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 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Report · Nov 10, 2025

@benjaminh35426781: "DirectX: NVIDIA GeForce RTX 4070 (32.0.15.8180)"

That graphics driver is a Game Ready driver. But Nvidia and Adobe recommend using Studio drivers, which get more testing with creative apps like LR. You can download the latest Studio driver from here:

https://www.nvidia.com/en-us/drivers/details/257327/

To help others, let us know if that fixes the issue.

Report · Nov 10, 2025

It is yes because I also game on this PC.

I've never had an issue using it before and it's only on lr15 that this bug
has appeared

Report · Nov 10, 2025

@benjaminh35426781: "It is yes because I also game on this PC. I've never had an issue using it before and it's only on lr15 that this bug has appeared"

LR uses the GPU much differently than nearly another other app, especially games. Games generate gazillions of shaded triangles per second, while LR executes its render pipeline on still images and AI models on arrays of pixels. Thus it's often the case that when LR trips over a driver bug, it's the only app users see having problems.

Nvidia releases a Game Ready driver about twice a month plus or minus. Once a month it takes one of those drivers and does the extra testing with creative apps and releases it as a Studio driver. So a Studio driver is just a Game Ready driver that's a couple three weeks old.

Report · Nov 11, 2025

No LR does not react at all. After restarting the program all is well again. I made two screenshots to illustrate the issue, one with blur set to 100% and Focus range set to zero and one with blur set to 100% and Focus range set to full. As you can see, none of these settings made any difference. After restarting, however, the last setting was applied.

Report · Nov 11, 2025

Hey all! @lagedor222, @stephanie_1314, @benjaminh35426781, @Barryvcns & @ManyHatsatWork.

Before you exit Lightroom Classic > go to Lightroom Classic /edit > Preferences > Performance > Optimize Catalog... & proceed with restarting Lightroom Classic.

Let me know if the issue exists after restarting Photoshop.

Thanks!
Sameer K
(Type '@' and type my name to mention me when you reply)

Report · Nov 11, 2025

@Sameer

No, it didn't fix the problem.

Report · Nov 12, 2025

This didnt fix the issue for me @Sameer K

I can use it on 1 photo after the program starts and then anythingh after it doesnt work - i have to restart LR again.

Report · Nov 12, 2025

@two miles5336627, @stephanie_1314 - Please share the system info from Lightroom Help > System info > Copy & paste into a text document > upload & attach here.

Thanks!
Sameer K
(Type '@' and type my name to mention me when you reply)

Report · Nov 13, 2025

@Sameer K here you go

Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]

License: Creative Cloud

Language setting: en

Operating system: Windows 11 - Home Premium Edition

Version: 11.0.26200

Application architecture: x64

System architecture: x64

Logical processor count: 16

Processor speed: 3.6GHz

SqLite Version: 3.36.0

Adobe GSDK Version: 1.4.0.171

CPU Utilisation: 30.0%

Power Source: Plugged In

Built-in memory: 65460.9 MB

Dedicated GPU memory used by Lightroom: 13222.7MB / 12012.0MB (110%)

Real memory available to Lightroom: 65460.9 MB

Real memory used by Lightroom: 14524.1 MB (22.1%)

Virtual memory used by Lightroom: 25791.9 MB

GDI objects count: 934

USER objects count: 3451

Process handles count: 3827

Memory cache size: 12120.5MB

Internal Camera Raw version: 18.0 [ 2389 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 4506MB / 32730MB (13%)

Camera Raw real memory: 4694MB / 65460MB (7%)

Cache1:

Final1- RAM:165.0MB, VRAM:0.0MB, _DSC8090.NEF

Final2- RAM:2388.0MB, VRAM:5580.0MB, _DSC8089.NEF

Final3- RAM:165.0MB, VRAM:0.0MB, _DSC8091.NEF

NT- RAM:2718.0MB, VRAM:5580.0MB, Combined:8298.0MB

Cache2:

m:12120.5MB, n:495.4MB

U-main: 111.0MB

System DPI setting: 216 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: NVIDIA GeForce RTX 4070 (32.0.15.8157)

Init State: GPU for Export supported by default

User Preference: GPU for Image Processing Enabled

Enable HDR in Library: ON

GPU for Preview Generation: Auto (S5_11)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: C:\Users\benat\Pictures\Lightroom\Lightroom Catalog-2-v13-3.lrcat

Settings Folder: C:\Users\benat\AppData\Roaming\Adobe\Lightroom

Installed Plugins:

1) AdobeStock

2) Flickr

Config.lua flags:

Adapter #1: Vendor : 10de

Device : 2786

Subsystem : 13cd196e

Revision : a1

Video Memory : 12012

Adapter #2: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: System Default - Panasonic-TV (NVIDIA High Definition Audio)

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x26

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 4070/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 581.57

GPUDeviceEnabled: false

OGLEnabled: true

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Report · Nov 13, 2025

@Sameer K

Report · Nov 13, 2025

@sameerSystem info attached

Report · Nov 14, 2025

Lightroom 15.0.1 lens blur is not working anymore.

Mac Studio Apple m1 Max , Sequioa 15.6

Report · Nov 14, 2025

Hi @marieps, thanks so much for reaching out!
Could you share a bit more about what’s not working with Lens Blur? If possible, a screenshot of what you’re seeing would be super helpful.
Appreciate your help!
Alek

*(If you mention me with an @, like @Aleke, I’ll get a notification and can respond faster.)*

Report · Nov 16, 2025

Hi @Aleke ,

I can select everything , move the sliders, but no change is shown on the photo.

And if I select "show lensblur" (Tiefe visualieren in german) nothing happens.

I tried it in Camera Raw with the same photo and it worked ok.

No two days later it also works again in Lightroom Classic!

I will keep an eye on it.

Report · Nov 17, 2025

same issue on the studio drivers

P: Lens Blur not working since updating to LR 15

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