AI Denoise 13.5.1 in Lightroom not working

I was able to use the AI Denoise feature on several pics. Today, I have selected a group of 19 pictures to denoise. It doesn't complete the process with any of them. Did the same process with just one photo. I select a picture, click the denoise option, look at the before and after comparison, select "enhance", and wait. The little wheel spins, indicating the process is running, and after a minute or two, I get a grey screen saying "No photo selected". I've updated my preferences to see if that helped.

Use Graphics processor: Auto to Custom checking Use GPU for image processing.

Camera Raw Cache Settings Maximum size: 5.0 GM to 9.0 GN

I've purged the cache in both Camera Raw Cache Settings and Video Cache settings.

Gave Full Disk access to Lightroom. Restarted Lightroom.

Enable HDR in Library: Off to On.

Restarted My computer.

Nothing seems to help.

Lightroom Classic version: 13.5.1 [ 202408271704-d15d09cd ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 15
Version: 15.0.1 [24A348]
Application architecture: arm64
Logical processor count: 8
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 24,576.0 MB
Dedicated GPU memory used by Lightroom: 3,817.4MB / 16,384.0MB (23%)
Real memory available to Lightroom: 24,576.0 MB
Real memory used by Lightroom: 3,462.3 MB (14.0%)
Virtual memory used by Lightroom: 420,125.9 MB
Memory cache size: 3,211.5MB
Internal Camera Raw version: 16.5 [ 1954 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 1093MB / 12287MB (8%)
Camera Raw real memory: 1094MB / 24576MB (4%)

Cache1:
Final1- RAM:189.0MB, VRAM:0.0MB, 20240921-_DSC6843.NEF
NT- RAM:189.0MB, VRAM:0.0MB, Combined:189.0MB

Cache2:
m:3,211.5MB, n:579.4MB

U-main: 107.0MB

Standard Preview Size: 4480 pixels
Displays: 1) 4480x2520, 2) 1920x1080

Graphics Processor Info:
Metal: Apple M3
Init State: GPU for Export supported by default
User Preference: GPU for Image Processing Enabled
Enable HDR in Library: ON

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/Samsung T5/Original Files (do not delete)/Main LR Library/MAIN LR Library 24-07-15-v13.lrcat
Settings Folder: /Users/amyrobin/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr
4) Nikon Tether Plugin

Config.lua flags:

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