Hi, I use Office 365. I save my files to my computer (not to the cloud).

Previously, when clicking X on a Word doc to close it, it would prompt you to save it and you could rename the file.

Today, I see a different screen :

Save your changes to this file?

The Filename field is greyed out. I cannot change the filename.
The Choose a Location works. I can change the location.

The buttons underneath are : Save | Don't save | Cancel

Has this happened to anyone else? Is there a way to revert back?