That's very odd, maybe lower graphics settings? also try pressing and holding LControl + LAlt + LShift + R. This will do a full reset and purge all save data but should fully reset and hopefully work upon relaunching.
Also check that antivirus isn't blocking it, antivirus can be a little finicky for indie dev games especially ones that make calls to the internet or open browser tabs like mine does to allow peeps to visit my sites, :o