I get this message all the time when I save while in a document. I had a 2014 iMac running Mojave and now I have the new 2021 iMac with the M1 chip running Monterey. Didn't make a difference. This started when I upgraded to the last version of Illustrator (2020?). Doesn't matter if I save as a .pdf or .ai file. Doesn't seem to affect anything important but it's really irritating. Anyone have any ideas?
Where do you save your files? Local, on a server or local in a synched cloud folder?
Almost always cloud storage, sometimes an external hard drive.
That is probably the reason for the message, to be safe, save local and copy the result to the cloud folder or external hard disk.
That happens automatically with the cloud. It's just irritating that every time I save that message pops up. It seems like Adobe's engineers should have anticipated it and fixed it before deploying the upgrade. Especially since the CC subscription service includes cloud storage and they encourage use.