Hi, the only situation I am aware of that this happens is if you have a computer with two graphic cards (one being integrated) and the game runs using the integrated one. If that's the case, please make sure, the graphic card to which the headset is plugged into, is being used.
If that's not the case, can you send me the log file (it's in _logs subfolder, the latest one / output.log) to contact@voidroom.com