Sorry I just saw this now; I've been super busy making the next update.
I'll be updating the demo soon and will take a look at this. Is your headset turned on when you start CakeMix? It's not been a VR game for a long time and shouldn't be booting into VR. The VR code is still in the base, because I might bring it back at some point, but right now it should not be loading it in.
In any case, like I say, I'm going to update this demo and I'll see if there might be something I can fix with that. Thanks for letting me know!