Powergrid : Drop player, and Quit buttons not working.

In these 2 games, I'd like to exit and not have the games cluttering up my active games list. Am I missing something, or are the drop player, and quit buttons not working? https://www.boardgamers.space/game/BGS-Rookie-Time-1 https://www.boardgamers.space/game/Funny-delusion-8017

Thanks, Megla