I was just coming here to suggest this after I got all the way through a game only to double click on a card, making it get "stuck" and having to quit out without completing it. Also maybe a way to toggle between 3-card and 1-card games?
Viewing post in A couple of suggestions
This should fix that bug. Thanks again for reporting it.
https://vectorhat.itch.io/radsol/devlog/134844/double-click-is-in