P: People mask detection fails. No people found.

Forum|Forum|6 months ago
December 26, 2025
7 replies
1696 views

With recent update of Lightroom release 15.1 and camera raw 18.1 on Windows 11, the software cannot detect people in some photos for masking even though they are very obvious in the photos (see the example attached). I haven't seen such an issue before recent update. Can anybody provide some insights about it? What could be wrong and how to fix this issue? Thanks in advance.

[moved from bugs to discussions according to the community rules - Mod.]

nongj70857852Author

@Anshul_Saini Hi, any update on this issue? Thanks

Anshul_Saini

Community Manager

Thanks for checking back in, @nongj70857852.

I wanted to let you know that this issue has now been transferred from the Lightroom team to the Camera Raw team. The team is actively investigating the samples you have shared.

The bug is currently under investigation, and there’s nothing further needed from you right now. As soon as I have a concrete update or guidance from the Camera Raw team, I’ll post it here.

Thanks again for your patience and for providing the images; they’ve been essential in moving this forward.

Best regards,
Anshul Saini

Anshul_Saini

Community Manager

Updating status.

Anshul_Saini

Community Manager

Hi @nongj70857852,

Thanks for sharing the full-resolution image and for patiently working through this.

I’ve tested the same image on my end as well, and I’m seeing the same behavior. People are not detected in this photo. Since this issue reproduces on a different system and OS, it suggests that the AI model is not recognizing people in this specific image, rather than an issue with your hardware, GPU driver, or local setup.

Here’s what we’ll do next:

• I’m sharing this example with the product team so they can investigate why People detection fails on this image

• This appears to be image-specific behavior rather than a system or version-specific regression

If you have a few more original, full-resolution examples where People masking fails in a similar way, please feel free to attach them. That will help the team with their investigation.

Thanks again for flagging this and for your patience while we investigate.

Best regards,

Anshul Saini

nongj70857852Author

Please see the additional two photos.

9688: the masks of the left two people are completely missing

9717: individual mask for the most right person is missing, but the mask of all people covers the most right person.

Thank you for investigating.

Sameer K

Community Manager

Thanks for the update. We've shared the samples with the product team to investigate further.

Best,

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

johnrellis

Legend

[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]

@nongj70857852, using your screenshot, my LR 15.1 / Mac OS doesn't find any People masks either:

johnrellis_0-1766765566562.png

Please attach here a full-resolution JPEG exported from the original photos (with no edits), so we can verify that the problem occurs on other LR installations.

If it does, that indicates a failure of the AI model behind People masking to correctly recognize the people in this photo.

nongj70857852Author

Please see the image attached.

GoldingD

Legend

Dedicated GPU memory used by Lightroom: 1434.4MB / 128.0MB (1120%)

That looks very odd.

johnrellis

Legend

Dedicated GPU memory used by Lightroom: 1434.4MB / 128.0MB (1120%)

"That looks very odd"

That's what LR reports for integrated GPUs that have a very small amount of dedicated memory (e.g. 128 MB in this case) but access much larger amounts of shared memory. I don't think Adobe has ever clarified the system requirements for such GPUs -- the current minimum requirements say "2 GB of GPU memory" without distinguishing between dedicated and shared memory. There are lots of reports here of people with newer Intel integrated GPUs successfully using AI masking and other AI commands.

nongj70857852Author

Not all masking of people failed. On my computer, some failed and some succeeded. I couldn't figure out why. My Arc GPU should be pretty new. It was released in Sep 2024. I didn't encountered such problem before upgrading to 15.1 recently, but I don't recall which version was used when I did people masking last time.

JohanElzenga

Community Expert

Problems like this are almost always caused by outdated GPU drivers. Check the website of your GPU manufacturer for driver updates. If you use a Ndvia GPU, then make sure you install the Studio drivers, not the Game Ready drivers.

-- Johan W. Elzenga

nongj70857852Author

Thanks for response. I use Intel ARC GPU in a HP laptop. I updated to the lastest vertion 32.0.101.8331. It didn't help. I tried on and off of using graphics processor. It didn't help either. Anything else to check?

Srishti_Bali

Legend

Hi @nongj70857852

Thanks for reporting this. To help narrow down what’s going on, could you please share a few more details?

In Lightroom Classic, go to Help > System Info and copy-paste the details here.
Are these photos newly imported after updating to LrC 15.1, or were they already in the catalog before the update?
Does this happen with all photos or only specific ones (for example, certain file types like RAW vs JPEG, or photos from a specific camera)?
If possible, please share a short screen recording showing the exact steps you’re following when you try to create a People mask. This helps a lot in spotting patterns.
Try temporarily disabling GPU acceleration: Edit > Preferences > Performance > Use Graphics Processor → Off, restart Lightroom, and see if People masking works any differently.

Once we have this info, we'll be able to assist better.

Regards,

Srishti

nongj70857852Author

Thanks for the response. Here is the System info

Lightroom Classic version: 15.1 [ 202512101606-1bb801a8 ]

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: 8

Processor speed: 3.3GHz

SqLite Version: 3.36.0

Adobe GSDK Version: 1.4.0.171

CPU Utilisation: 5.0%

Power Source: Plugged In

Built-in memory: 32384.5 MB

Dedicated GPU memory used by Lightroom: 1434.4MB / 128.0MB (1120%)

Real memory available to Lightroom: 32384.5 MB

Real memory used by Lightroom: 3838.1 MB (11.8%)

Virtual memory used by Lightroom: 4354.5 MB

GDI objects count: 712

USER objects count: 2728

Process handles count: 2159

Memory cache size: 0.0MB

Internal Camera Raw version: 18.1 [ 2420 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 372MB / 16192MB (2%)

Camera Raw real memory: 462MB / 32384MB (1%)

Cache1:

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

Cache2:

m:0.0MB, n:0.0MB

U-main: 78.0MB

System DPI setting: 168 DPI (high DPI mode)

Desktop composition enabled: Yes

Standard Preview Size: 2904 pixels

Displays: 1) 2880x1800, 2) 2560x1440

Input types: Multitouch: Yes, Integrated touch: Yes, Integrated pen: Yes, External touch: No, External pen: No, Keyboard: Yes

Graphics Processor Info:

DirectX: Intel(R) Arc(TM) 140V GPU (16GB) (32.0.101.8331)

Init State: GPU for Export supported by default

User Preference: Auto

Enable HDR in Library: ON

GPU for Preview Generation: Off (S5_0)

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

Library Path: C:\Users\nongj\Pictures\Lightroom\Lightroom Catalog.lrcat

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

Installed Plugins:

1) AdobeStock

2) Flickr

Config.lua flags:

Adapter #1: Vendor : 8086

Device : 64a0

Subsystem : 8da0103c

Revision : 4

Video Memory : 128

Adapter #2: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: System Default - Headphone (Realtek(R) 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: 8

GL_BLUE_BITS: 8

GL_DEPTH_BITS: 24

GL_GREEN_BITS: 8

GL_MAX_3D_TEXTURE_SIZE: 2048

GL_MAX_TEXTURE_SIZE: 16384

GL_MAX_TEXTURE_UNITS: 8

GL_MAX_VIEWPORT_DIMS: 16384,16384

GL_RED_BITS: 8

GL_RENDERER: Intel(R) Arc(TM) 140V GPU (16GB)

GL_SHADING_LANGUAGE_VERSION: 4.60 - Build 32.0.101.8331

GL_STENCIL_BITS: 8

GL_VENDOR: Intel

GL_VERSION: 4.6.0 - Build 32.0.101.8331

GPUDeviceEnabled: false

OGLEnabled: true

GL_EXTENSIONS: GL_AMD_depth_clamp_separate GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ARB_ES2_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_cl_event 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_compute_shader GL_ARB_conditional_render_inverted GL_ARB_conservative_depth 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_elements_base_vertex GL_ARB_draw_indirect GL_ARB_draw_instanced GL_ARB_enhanced_layouts 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_half_float_pixel GL_ARB_half_float_vertex 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_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 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The photos were newly imported after upgrading to 15.1. It happens to some photos, not all of them. For some photo, the software can detect people even the backs of people face the camera. For some photos, the software can not detect people even though they are facing the camera and well defined as shown in the example.

The steps for making people are very standard and straight forwared: In the development mode, select the photo to be edited, click the "masking" icon below the histogram in the right-hand side panel. The software runs to detect people. Then it gives the message under "people" saying "no people found" as shown in a screen shot attached in my original post.

I selected off for "Use Graphics Processor". It made no difference.

I also updated the GPU driver (for Intel Arc 140V, CPU Intel Core Ultra 7 258V) to the latest version 32.0.101.8331 . It did not help either.

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