I am using Lightroom Classic and the removal tool has stopped detecting people. It worked perfectly well in the past but when I try to use it now, it says "No People Detected" and yet there are clearly identifiable people in the shot

Yes, other pictures with people too

Lightroom Classic version: 15.3 [ 202604090947-8f3672ed ]
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: 2.3GHz
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.213

CPU Utilisation: 2.0%
Power Source: Plugged In
Built-in memory: 32547.3 MB
Dedicated GPU memory used by Lightroom: 3986.5MB / 128.0MB (3114%)
Real memory available to Lightroom: 32547.3 MB
Real memory used by Lightroom: 4605.4 MB (14.1%)
Virtual memory used by Lightroom: 13817.3 MB
GDI objects count: 1299
USER objects count: 4785
Process handles count: 4227
Memory cache size: 1119.4MB
Internal Camera Raw version: 18.3 [ 2527 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 3686MB / 16273MB (22%)
Camera Raw real memory: 3848MB / 32547MB (11%)

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

Cache2: 
m:1119.4MB, n:0.0MB

U-main: 175.0MB

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: Intel(R) UHD Graphics (30.0.101.1273)
Init State: GPU for Display supported by default with image processing and export supported in the custom mode
User Preference: Auto
Enable HDR in Library: ON
GPU for Preview Generation: Auto (S4_0)

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

Installed Plugins: 
1) AdobeStock
2) Flickr

Config.lua flags: 

Adapter #1: Vendor : 8086
    Device : 9a60
    Subsystem : 153b1025
    Revision : 1
    Video Memory : 128
Adapter #2: Vendor : 1414
    Device : 8c
    Subsystem : 0
    Revision : 0
    Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: System Default - Speakers (Realtek(R) Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x34
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) UHD Graphics
GL_SHADING_LANGUAGE_VERSION: 4.60 - Build 30.0.101.1273
GL_STENCIL_BITS: 8
GL_VENDOR: Intel
GL_VERSION: 4.6.0 - Build 30.0.101.1273
GPUDeviceEnabled: false
OGLEnabled: true
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