Windows 10 pro, XD 126.96.36.199, Creative Cloud sync 188.8.131.52.
I was working in a massive file that is in Cloud. Coedit is set and I was working in the file with a colleague. I had a connection problem while working, got connection again and continue working, but only at the end of the day, when I was saving the file to close it, I receive a message that my local editions couldn't get save and ask me what to do (save as, discard changes, etc).
What annoys me the most is that all of the time the file was showing the little cloud icon, so it hadn't to be the case to lose my work.