New Mac issue--not able to move between board and windows


In the last day or so, I’ve suddenly had an issue where once a card or piece goes down to the map, I can no longer move it back into the original window. So for instance, if I play a card to the board in 1960, I can’t move it back into my hand, or onto the debate board. I’m seeing the same issue across different modules.

This is on a Mac with the most recent version of Vassal downloaded. Any suggestions?