Any of you got a problem where you can't change your own model? It flickers to the designated model and then back to your original playermodel, right? I found a fix.

I've had the same problem and apparently it is caused by the Enhanced playermodel menu, something like that. I think you know what I'm talking about. Anyways, look around for a checkbox in the settings saying "enforce playermodel". Disable it. Boom. Should work.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1096589889