If it's in the main menu, then please, once you open the game press SHIFT + G and change renderer to ANGLE. If that doesn't work, join the discord and open a ticket!
Btw, just for the record. This game won't turn into a Doki doki or something like that hahaha. It has some scary elements and some secrets, but nothing more than that.
Lore and world-wise, it is actually scary to roam at midnight. So yeah, if possible, go back home before that time!
Sadly, I cannot change the MC., so I've only made some tweaks to his face. It won't fix the problem entirely but I believe it wouldn't look that weird.