Cleaned Up photos fail to export on Mac

TrickyToo101 wrote: …edited on the iPhone with the clean up functionality, these photos fail to export on my Mac (Sequoia 15.1.1) with an Unknown error (3).

This doesn't seem to happen to me. You're using File>Export>Export nn Photos, is that right? Can you Export Unmodified Original? How did the edited picture get to your Mac? by iCloud Photos? or what?

Is your Photos Library located in the Picture folder or somewhere else?

Have you tried these things?

• Restart the computer (of course)
• Re-start in Safe Mode. This bypasses certain potentially disruptive processes, and it often helps. Safe Mode is different for different computers, so see this: 

           Start up your Mac in safe mode - Apple Support 

Those are the easiest things to try first. Then try these:

• Use another library if you have one, or make a small test Library with a few pictures in it and see if the same thing happens. You can create a new Library by closing Photos and then option-clicking on the Photos icon.
• Make a new user and see if the same problem recurs with it
• Rebuild your Photos Library--close Photos and re-launch by option-command-clicking the app icon.

The idea is to find out if the problem is with the Library, with your account, or with caches and login items, and stuff like that. One of these steps may fix the problem, but their failure to work also helps figure out what's happening.

Let us know what happens…