Unable to use OneDrive with Files On-Demand enabled

I can’t even add a vault located on OneDrive in Windows Insider Preview (Bld 16296).
It has this “new” OneDrive client, all files downloaded for offline use, but still no success.

Any clues?

Is it possible that you have the new “Files On-Demand” feature enabled? Unfortunately, it doesn’t work with Cryptomator. I’m not sure if it’s enough to have the files offline available. I would’ve guessed that it shouldn’t make a difference but who knows.

If you’re still having issues, please look inside the log file for errors.

Yes, i use “Files On-Demand”…

Any clue how to turn it off ?

found it…