OnFocusLost() reason 2 - changes the focus from one window to another by itself RESOLVED

Why is it? I have been developing a multiplayer game(listen server)
And if I set 2 players and untick(dedicated server) and then start the game in PIE,
Server windows spawn the pawn 1st and after that client.
I lose my focus, and from this point, I start manipulating a client’s pawn the active(in front of me) window is a server


i found out that if i switch my default pawn to another it does not lose focus. How can i fix it? Help me please!

SOLVED: screenshot№2