There needs to be a way to disable this warning message. I have only seen this error in Illustrator, and it has been around for over 15 years with no solid solution. It appears to be related to file timestamps, but when a user is working on a file, saved on a file server, and they are the ONLY one who has access to the file, this error should NEVER appear. This error appears for Windows or Mac users, saving files on either a network or cloud storage location. So far, Adobe's solution is "just save the file locally". This is not a solution. There are many reasons files are not stored locally.
It would be best to have the option to disable this file check Adobe is doing. It does not help anyone.