Skin Issue

I have attempted to, Reinstall Minecraft and all Optifines, Reupload Skin, Updated my computer, checked the skin server, I have done everything and all I see is Alex and Steve, before I reinstalled Minecraft I could see the skins of the people I played with 24/7 now I cant. I'm trying to find a resolution and I am completely failing. so I need help. it all started about 2 weeks ago. Before then I was able to see every skin.

This is for versions 1.12 (Optifine and regular) and 1.13 (regular)