Photos app is not scanning Faces.

Hey everyone at iFixit. I've got a strange problem happening with my MacBook. The photos app will not scan faces. I have always been able to scan faces until just recently. It simply says "0 Photos Scanned / Photos will continue scanning your remaining 736 photos when you're not using the app and your Mac is connected to power." It has said that for weeks, and it still won't work.

I have always been able to open Photos while on battery power, plug in the MacBook, open Finder, activate the screen saver, and let it run for a few hours. Normally, it works fine after that.

So far, I have tried:

Rebuilding the Library

Reinstalling macOS

Restoring pictures with Time Machine

Nest Cache folders "https://discussions.apple.com/thread/252...

Boot in Safe Mode

Reset NVRAM/PRAM

Reset SMC

Repair Library.

I have noticed, judging by the support online, that photoanalysisd is the program that scans photos. According to Activity Monitor, that program is never running, which means that the photos are not scanning.

I have been looking for a solution for about two weeks now, and I still can't find anything. Do you have any suggestions? Thanks in advance!