Closed Gameloop always black screen on OBS Software

[PHC_Taong-BATO]

I Need Help.

Every time i setup my game and stream, i used OBS Software via PC, and it was good.
until i try to stream a game, via Gameloop.
GameLoop is a android emulator, same as nox and bluestacks.
when i played via gameloop emulator,. it always response a black screen on live stream obs.
only sound of the game but black screen.

please help me.

thanks.