Sadly I couldn't got the time to add undoing card moves, this is why there is end turn button actually.
I never saw this glitch. But there is one glitch that may be causing that. I fixed it for after-jam version. Thanks for reporting with screenshot. It's definitely really helpful. Thanks a bunch!
I have plans for this game to make it physical card game but I was thinking completely different object to keep track player's type. And you are amazing. Giving the discarded card is so simple and more effective idea. I'm definitely doing this. I hope you enjoyed besides the glitch you have encountered. Remember, you can skip tutorial with pressing and holding Q+E+Space if you want to play again.
Thanks a lot for everything, I will look your game too! It's looks so well polished. Have a good day! ʕっ•ᴥ•ʔっ