I have a Delta 1010 soundcard which I do NOT use for OBS (OBS cant see it at all because it is ASIO drivers) so I use the onboard soundcard for OBS. It seems that the bare presence of these drivers are enough to make OBS/NDI crash. I have to deactivate all 10 channels in System hardware settings. Then OBS works. Think that NDI packageg gets confused over things that does not concen it.