Greetings. This one is not urgent in any way, it's just funny and another way to play the famous Playroom crash melody. So when a round is over in Uno and you are waiting for the next one or simply pausing the game, you can press shift H or shift C to sort your cards. Now, if pressing up or down in the menu list you will hear the boundary reached noise, but more importantly if you try to press left or right the Playroom will crash with a fatal error and will play the tune. The same happens if you try to sort this empty list with shift up or down. Interestingly, this bug does not occur in a similar situation in Rummy, where pressing shift h during a break won't cause this error.