If you happen to give the demo another try, could to provide a screenshot of the problem. I haven't been able to replicate anything like unfortunately.
EDIT: nevermind i've seen it with the La_Fafafa's video. Bloody export build bug
I had another go and it's working perfectly fine now, clearly it was an unusual bug. It's the area where it says "Hold Shift to Pan Camera"
I can't think of anything that could have caused it.