Cannot "save" or "save as" PDF files anymore

[Bjørn22110630fj03]

Cannot "save" or "save as" PDF files anymore.

Since Windows 10 update 21H2, I get an empty window instead of the file save GUI.

I can close the empty window, so it is not a real crash.

Same issue on all PDF files.

Adobe Acrobate Reader DC Continous Release version 2021.007.20099.

OS: Win 10 Pro 64bit update 21H2 (issue happened after 21H2).

Have tried restarting the computer. No change.

Have tried updateing Windows 10. There are no updates available.

Have tried Help-search for updates, Adobe Acrobate Reader DC. There are no updates available.

Have not yet tried repair installation.

[Amal.]

Hi there

Hope you are doeing well and sorry for the trouble. As described you are unable to save the PDF and getting the blank white screen 

Please go to Edit (Win) , Adobe Acrobat (Mac) > Preferences > General > Uncheck 'Show online storage when saving file' and 'Show online storage when opening file' > Click OK and reboot the appliction and check.

Regards

Amal