Issue is still here. Can't play at all on my iPhone. Changing zoom settings didn't help.
Zoomed In

Until the app gets updated, changing the Zoom setting is the only option for the app.
https://support.chess.com/article/295-how-do-i-report-a-bug-or-make-a-suggestion
Make a suggestion and see if its something that can be helped along.
My right side of my board is also missing. Only seems to be missing so far if I challenge a friend. I have my view as standard not zoomed. I have iPhone & already have latest version. Really hope to be able to play here soon.

My right side of my board is also missing. Only seems to be missing so far if I challenge a friend. I have my view as standard not zoomed. I have iPhone & already have latest version. Really hope to be able to play here soon.
Are you on the uOS app? If so, what version?
I have the same issue iphone mini 13 , latest iOS update. This Only occurs when playing against people. Puzzles, vs computer, etc. all play normally. Pretty frustrating.
same problem here zoom in cancelled does not solve issue.