watch
Yep, other iOS users also have been complaining about the same thing. I think the developers must be aware of the problem by now.
There are other threads on the issue as well~
https://www.chess.com/forum/view/site-feedback/app-crashes-when-trying-to-watch-ganes
Also, sometimes the moves don't come up at the same time as they are played, or come up in the wrong order, making the game confusing to watch. It makes it look like a GM just hung a piece and the other one didn't notice and the game went on for a few moves with the piece hanging.
Did anyone else face this problem?