Black Square Pops up after Running inside Studio

[Callum_Cloth (not)]

I want to remove this black box from my screen. It pops out of nowhere after play testing.

I even reinstalled studio and restarted my computer and still the black square comes after testing.

I am confused why this is here and need to find out if there is a way to remove it, this is my first post sorry if the format or category is wrong

[deafaultyboii1324]

It’s likely this the widget of a plugin which has someone bugged out to show without any way of closing it. The shape of the box even looks like the default size of a plugin widget when first opened. As simple, and temporary fix, you could try opening/closing every plugin widget.

[Callum_Cloth (not)]

Thank you, it turns out it was a glitched plugin