Yes/No Buttons don't work when learning

[Yavanna108]

Hi,
I've been using jMemorize since several years now and it is really the best flashcard tool I know!
However since a few days suddenly the Yes/No buttons sometimes don't work in the learning season. I am using Windows 10 and tried both the windows and .jar versions on different computers. Also when ending the session and beginning a new one the answer is already shown and the buttons also don't work. At other times they apparently work but the answer screen and progress chart doesn't chance when learning until the session is over because you answered everything with yes.

But be great if this could be addressed since I am in my exams. I tried other tools but nothing is comparable to jmemorize.

Thanks for the good work!