facing same problems
Crashing (app freezing) mid game?
Have similar problem. Both clocks stop in the middle of a game, and I cannot see the opponent’s last move. I can chat however. Have tried on 4g and different WiFi locations - the connection is not the issue.

Sorry about that guys, it could be your internet problems, or potentially your mobile phone doesn't support the chess.com version.
Don't worry about your opponent cheating, they will get banned :-)

Hello
I am having an issue where the app crashes (freezes) sometimes mid game. The only way to get back to playing is to close the app and reopen twice. Sometimes three times. If I reopen it once is still frozen. The second time it reboots the app and goes straight back to the game (unless time runs out in which case I either lose or draw if insufficient material). At this stage I will be unable to play blitz and bullet as if it crashes mid-game in those I have a loss unless the opponent has insufficient material. Sometimes this is happening every game. I have tried deleting and redownloading the app but it didn't help. During the evenings it tends to happen less but in the day time almost every game. I am 99% sure it's not my connection as I have strong 4G and strong wifi so I'm wondering if anyone else has or had this problem and how to resolve it?
Thanks
New app coming out to fix the issue.
https://www.chess.com/forum/view/general/clock-stuck#comment-56081828
I am also having this issue on iOS app. Just lost to time on blitz up a queen. It’s completely unplayable