Files seemingly randomly assigned new timecodes, breaking them in sequences

This has happened to two projects so far.
My timeline had separate audio and video. The video file had a new timecode associated with it on opening. Going back to old saves did not resolve. The timecode started before original 00:00 and ended before original ending. It had slipped by ~ 3 minutes and some change. Once I figured that out, I batch slipped all of the affected clips back by the exact time. It happened on another video clip in a different timeline in the same project, this time it had slipped by ~ 6 some minuets and I applied the same fix. Insanely frustrating but fixable.
The next project was an audio track, it started about a minute in and ended two ish minutes before original ending. So even when bringing the entire audio file into the timeline, it didn't read as the full length as it did in finder. No in and out points were set. No subclips were made. The timeline did not indicate that it was the end of the clip, but there was nowhere in premiere that I could play past the new endpoint.
 
If this is a feature-not-a-bug situation, and I am woefully unaware, I would assume this is a newer future. I have never seen this kind of behavior in the past 9 years of being a Premiere user.
 
I am remaining on 23.6. I can not afford to upgrade my team in the middle of event season.
We are on Mac Pro Intell macOS Ventura builds.
 
Any and all help or feedback is appreciated.