This is still an issue, and a critical one!! (Illustrator Version 26.4) It's not just an annoyance. I am currently editing files for print production that were saved as editable pdfs. When I now select "discard changes", the changes I made are discarded. When I select "keep changes", I cant edit the file as a multi-page editable PDF but it is treated like one that wasn't saved with editing capabilities. That means I am losing all the work that I did in the past days. Please provide a fix for this immediately!

It's Baaaaack! I can reproduce it reliably when I Save As and then edit the new file.

Illustrator 26.3.1, Monterey 12.4, Mac Studio

Here's my best guess...I'm having the same issue and based off the other responses:

It happens when you are working off a remote server, either GoogleDrive, BoxDrive, OneDrive, etc.

These drives manifest as synched folders on our desktop, even if we appear to be working directly off the drive. As synching happens almost continuously now, and files get 'marked' by the particular remote drive, that very minor update to the file is what triggers this. It's as if you and a colleague were sharing a file through Creative cloud. The trigger is meant to warn you.
Instead in the majority of cases it's an ongoing annoyance.
Best guess.

we are running 3 brand new imacs on OS 12.1, and have the latest version of Illustrator (26.03). This happens on all the imacs almost all of the time. We also get temp files that we cannot delete unless we restart the macs. We didnt have this problem before we installed the new macs.

I am running all applications and OS fully up to date on a brand new iMac, syncing to OneDrive as I always have been, I am the only person using Illustrator in my company, and I get this annoying message every time...

I am running 12.0.1 Monterey with Illustrator CC 2022. I usually get this issue when I save files into Google Drive and open them. It's really frustrating because I am the only one with access to the file.

I hope Adobe can solve this bug.

26.0.1 version and this **** is still happening. Saving
in macOS to a folder synced with OneDrive. But cloud has been around for a while now, isn't it?

Edit: Obviously nobody else is not editing that file, just created it.

Still an ongoing problem that hasn't been resolved with any of the latest software updates. Been dealing with this message for years now—on AI files that have never once been opened or even placed in any other program. Please fix!

Still happening in version 25.4.1 ☹️

Why can't this problem get resolved??? Guess deaf ears or selective hearing is the problem.

Yes I have constantly had this issue for 2 years now from OS 10.13 and even through to now Big Sur OS 11.2.2 . It seems to happen anytime I am working on any Illustrator files that are directly saved on a cloud service - I have seen it on Google Drive, One Drive, and also happens when saving directly to my Mac Desktop - which is sync'ing to my Apple iCloud account. I am running the very latest version of Illustrator. According to my Creative Cloud account I am up to date with version 25.2

Have had this issue for over a year with several updates to Mac OS (now Big Sur 11.2.1), OneDrive and Illustrator 2021. Pathetic.

Same issue running 2018 mac mini Catalina 10.15.7 and Illustrator 2021 v25 saving to an external Solid State drive via usb c. Correct file icon missing as well.
Never had the issue before the last Adobe update.

Adobe needs to address the fact that when saving files, the default type of file is Adobe Illustrator 2020, however, when you Get iinfo on the file from the Mac, you will notice that the Application name which provides the icon is Adobe Illustrator 2021, so Perhaps this is where the issue resides?

It's lame that this is still an issue. No respect.

This needs to be handled. I recently moved all my files to OneDrive so I could work with my entire team... not just designers. Many organizations use OneDrive. We're not a creative agency so seeing these messages is not going to force us to "give in" and use Creative Cloud storage. It's not the same thing. So please fix this. Put in an exception for OneDrive so we can save our files without this message. It's really really poor form to allow this to be a pain point for your paying customers for so long.

Fix it.

When is the class action law suit coming out? Can I pre-order?

I cant believe that such a huge company cant fix this, I cannot use Adobe Illustrator because of this annoying message.

Same here with OneDrive, very annoying

Same here. Started happening after I upgrade to Mojave.

Same problem. Just updated to 24.2.3 and then it started happening. Running Catalina which I think was a mistake to update to. Not using OneDrive. Seems like every week there is an Adobe update. Illustrator crashing way more than it ever has. Disappointed in Adobe.