So I was showing a friend of mine prospector and watching it from joinme when he decided to turn off prospector he was asked yes or no if he wanted to leave he pressed y and it spammed the prompt like 100x and he couldn't get it to turn off... it seems similar to the stranded ship bug where you couldn't get on even though you were pressing n.
Well I went on to find it and the first time I tried to exit, it spammed me too.