Custom skin seems to work for some users, whilst others are left in the dark

Hi everyone, for people who aren’t familiar with the current situation, I created a skin that selectively refuses to work with people. One abnormality I got out of the final product is that disabling the skin but also trying to use skin 8 (the number I assigned to my skin) will make the body of the vehicle… Disappear.

Something is definitely wrong, but I can’t put my finger on why. I thought that now I need to ask for assistance from people who are actually experienced with this.

What I have below is a line-by-line replication of the vmt I typed in for my addon, as well as details about the vtf file. I would love to get help with this problem, as an inexperienced Garry’s Mod addon maker.

“VertexlitGeneric”
{
“$basetexture” “models/tdmcars/supra/skin8”
“$bumpmap” “models/tdmcars/shared/skin_nm”
“$envmap” “env_cubemap”
“$envmaptint” “[0.35 .35 0.35]”
“$bumpmap” “models/tdmcars/shared/skin_nm”
“$phong” “1”
“$phongboost” “10”
“$phongfresnelranges” “[0.5 0.4 5]”
“$phongexponent” “200”

}

Enabled Flags: Eight Bit Alpha (nothing else currently enabled)

Skin Resolution: 4096x4096, DXT5

Thumbnail Resolution: 16x16, DXT1

Thank you for hearing me out, and hopefully, I won’t have to repeat this again.