Windows, Reaper: I am unable to click drop down menus and right click in Redux

I have a weird problem: I will be using redux without any issues when all of a sudden none of the drop down menus will drop down when I click them. I also am unable to right click anything. So I can’t destructively render a sample, duplicate a phrase, change the mod and fx sets etc etc. The problem goes away eventually but I have not found any specific action I can take to fix it, it ends as mysteriously as it begins. this happens almost every time I use the plug in, and it really messes up my flow. Anyone else had this happen? Anything I can do? I am using redux in reaper, on a dell laptop running windows 11.
Thanks in advance!