Save, Undo, Redo, etc. Unavailable Since 19.1 Update....

Hello!

Since the latest InDesign update in Dec (19.1), the menu functions for undo, redo, cut, paste, save (i can still do save as), etc. are greyed out, and cannot be accessed. We have tried opening files both from Box and directly from my desktop, we've rebooted, tried a few other various things in settings/preferences, and reinstalled 19.1, all with no success. The only fix our IT guy found that worked was reverting back to an older INDD version.  

Can you please provide some guidance or an update if a fix is in works?  I would like to update for the new features, but not at the expense of basic functionality. 

Thank you!