Affinity Photo 2.5.5 - Metadata memory problem

[JCouedor]

MacOS Sequoia Version 15.1.1,     Affinity Photo 2 Version 2.5.5

If you change the creation date in the metadata, it works correctly, but if you reread the file later, the date always returns to the current date.

[LarryYE]

This is not an Affinity problem, it is a Sequoia 15.1.1 problem.  It happens for all photo apps.  I have tried ON1 Photo Raw 2025, I upgraded from 2023 because I thought it was a compatibility issue.  NO.  Same issue.  Works sometimes, then stops updating, although it looks like it updated when the change is made.

It is like a buffer fills up and I cannot continue updating Meta Data.  This is NOT in Apple Photos, these are hundreds of jpg files that I scanned and am attempting to update the metadata exif date/time original.  The issue happens with ALL metadata changes.  

Problems happen with:

ON1 Photo Raw 2025

ACDsee Photo Studio Mac v9

MetaImage 2.6.5

Photo Sweeper 4.9.4

I have lots of memory and drive space:  MacBook Pro M4 Pro 48 gig memory and 2 TB drive

It is definitely Sequia 15.1.1, this was happening in  15.1 too.  

Wish I could return to Sonoma. Hmm, I can on my MacBook Air M2 and may do this to get the project done.