Help needed :)

[stuba]

I don't know what is going on with my OBS but when I try record my monitor (in which obs is running9 it creates this weird thing like multiplying the lower part of the screen - when I record f.e. a game or the screen with something else than obs running this thing does not happen - is this caused by some command or what? I haven't done anything (atleast on purpose) but i haven't find a way to get rid of this :p if someone knows what this is (and how to get rid of it) please help - I wouldn't like to reinstall obs again