When I start emacs all functionality of frames works fine. I can split frame by two via "C-x 3", switch to it "C-x o", and then close other (left) frame via "C-x 1".
But after I activate error frame on the bottom via pressing with mouse on error counter on the status bar (on screenshot bellow), and then close error frame, then "C-x 1" stops working. I still can use "C-x 3" and "C-x o", but "C-x 1" inside the right frame do not work anymore, it works only inside the left frame.
How lsp-mode do this, and how can I fix it?