P: (Mac) People masks selections are not as expected (Entire Screen or Square Area)

Yes, I filed the feature request two years ago:

https://community.adobe.com/t5/lightroom-classic-ideas/p-allow-users-to-disable-the-gpu-for-ai-masking/idi-p/12480845

YUUUUUUUP is almost like we know how to do things better than adobe 😜😜

@SweetPeaPhotog  haha sounds like the solution I sure could've used from 4/5 through 9/14.

So essentially what everyone was asking for before to be implemented? 

Disabling the use of the graphics processor for AI masking will cause LR to run the AI algorithms on the main CPU rather than the GPU.  The Mac AI framework will ensure that the AI models produce the exact same results regardless.  

My testing shows that AI masking runs about 4-5 times slower on the CPU than on a newer GPU. On an older less-capable GPU, the slowth could be less.

In theory it would just make the masking AI use the processor power instead of graphics power, could slightly slow down performance.

@johnrellis OH MY GOD YOU ARE MY F@$KING HERO. Will that have any impacts on image quality or anything? (I'm not going to pretend to know anything about graphics processorsexcept that they exist.)

@michelegranja, to continue working with masks while this issue is addressed, disable AI masking's use of the graphics processor:

https://helpx.adobe.com/camera-raw/kb/acr-gpu-faq.html#lens-blur

Hello again everyone! A few nights ago I just installed the most recent "bug fix" oS update (not the first one since our people masking issues were fixed in September)... and now THE ENTIRE MASKING TOOL SHUTS DOWN THE PROGRAM COMPLETELY in both ACR and LRC. Masking had been done successfully since all Adobe products were updated so the macOS update is the only thing that changed overnight when it started. Anyone else?

2020 Retina 5K iMac

Processor 3.6 GHz 10-Core Intel Core i9
Graphics AMD Radeon Pro 5700 8 GB
Memory 32 GB 2667 MHz DDR4
macOS Sonoma 14.2
PS Version is 25.1.0
ACR Version is 16.0.1.1683
LRC Version 13.0.1 Camera Raw 16.0

Yes, it's easy to downgrade. But if adobe is as messed up as last time then downgrading doesn't fix the issue. If it did I am sure this thread would have been solved ages ago.