Windowed Fullscreen game bugged?


hey there

so i have a dual screen setup and i like to tab out sometimes out of the game to start a new video or to watch an
stream (like the turtelrock streams :wink: ) so i m playing my game in windowed fullscreen but always when i tab out and do something it is closing the game window and when i m doing that to often it bugs out and doesnt open again or maybe doesnt go into fullscreen again

am i missing perhaps a setting that i should change or is something with the game up that it doesnt execute all that properly?

thanks in advance for the info