I have the same problem. HELP
Game Explorer Bug in iOS App (with photo)

It's true. It happened for me too. I spoke to a customer service person. They told me they were on it. And they never fixed it. Even now, I can't see what I'm typing. Sorry for the typos, but this is just another example of how this is not a well run mobile app.
I just wanted to report a bug that I've been experiencing with the iOS app to see if this is an issue for other people. When I go to the game explorer from the analysis board of any correspondence game, the board itself extends off the screen, so that I'm only able to view the bottom right corner of it. (See attached photo below).
I can still select moves, but I just can't see the activity on the board. I have to go back to the analysis board to see the final position after using the game explorer.
I believe this started happening around the time of the iOS 9 update in September. It still occurs even after the most recent 9.1 update.