Question / Help White Screen in the upper right corner

[Ezequiel Noe]

Hey Guys,
I have a problem with the "WIndow Capture" So everytime when I want to record Minecraft it gives mit this picture:

I dont know what to do, please help me :)

Thanks Ezequiel :3

 

[Harold]

Don't window capture minecraft. Game capture it.

 

[Ezequiel Noe]

I cant. When I game capture it, there is smth like black bars... and i dont want those...