i cant see any skins

so i used to play without fancy graphics on as i thought it slowed down my game a lot but now i fixed some issues on my laptop so i can turn it back on but for some reason skins became invisible. i searched online for something to help me but i couldn't find anything i also tried changing the bit number (32-bit, 24-bit and so on) but that also didn't help! anybody know how to fix this?