In collaborative mode, always the documents shows as "Saving..." because of this behaviour some of the already saved changes are lost. And the owner of this document couldn't able to retrieve it from history.
Why there is so much of inconsitency with windows version.
We're so sorry to hear about the trouble. Please try the steps shared below:
If it still doesn't work, please share a screenshot of the About XD info page(Under the XD menu option on macOS and under the Help menu on Windows) along with the version of the Operating system.
The provided solution doesn't work. I still can see as " - Saving..."
It appears that I have the same issue.
The problem is, that we can not work with this issue right now. We resorted to saving some files locally again (our last resort).
We are sorry for the trouble. We would request you to please try the steps suggested in this article: https://helpx.adobe.com/xd/kb/fix-issues-with-xd-cloud-documents.html and let us know if that helps.
We're here to help.