Black bar on the top of sandbox

Hi,

When I run the sandbox program I’m getting a black bar at the top of the window, about 2 inches tall. It’s only when I run the program and doesn’t show up during the calibration.

Does anyone happen to know how to fix this? Is there a configuration somewhere?


Please help.

Thanks!



I didn't find the right solution from the Internet.



References:

arsandbox.ucdavis.edu/forums/topic/black-bar-at-top-of-sandbox-2/


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