Black screen when enabling the SPOUT receiver

[mdethmers]

I am running the repo on python3.7. When running the repo with the receiver I get an intergelop error (directX/openGL), but it is not needed for my implementation.

When running the receiver part of the code, the window opens but it stays black. When checking with Arena and the SpoutReceiver demo it does receive an image. There is also no image when using the SpoutSender demo. I am sure to run arena and python37 on the high-performance nvidea card of my laptop. I also tried to to enable CPU sharing to see if that fixes the problem, which it does not.

Any ideas on what could cause this? Any help is greatly appreciated!