same problem here
How do I get back to the sidebar menu?
no solution, it is a change in the program check here https://www.chess.com/blog/News/new-navigation-being-rolled-out-in-coming-weeks
no solution, it is a change in the program check here https://www.chess.com/blog/News/new-navigation-being-rolled-out-in-coming-weeks
Quite a disappointing change, user input and/or a more direct notification would have been nice.