Can't move or delete files without quitting illustrator.
Once a file has been opened in Illustrator, I can't move/modify/rename/delete them without quitting illustrator first. I get "The action can't be completed because the file is open in Adobe Illustrator 2021". I run a lot of batch actions and move the files after so having to close and reopen the app everytime is really inconvenient.

I've updated/reinstalled Illustrator, restarted the pc etc.
Only affects Illustrator, other applications like Photoshop don't do it.
Doesn't matter the file type or location and files are local, not being synced anywhere.
Windows 10, latest version of Illustrator.
'Save in background' and 'Export in background' are turned off.
I one by one ended each Adobe process in task manager I could find while trying to delete the file each time and I could only delete it once Illustrator itself was terminated.
I'm stuck and I can't think of anything else to try, any advice?
