Keyboard stops working but only in Finder

A new problem that’s been plaguing my Mac these days is that the keyboard sometimes stops working, but only in the Finder. In all the other applications, it remains functional. I use a Wacom tablet, and suspect it may have something to do with that, but more generally I’m guessing there is a key-command somewhere that is conflicting with something else.

My only solution so far is to relaunch the Finder.

Looks like others are having similar problems but so far, no solutions.