I made my own half life 2 textures I tried to put them into the game, at first I could see the door, but I fixed it somehow but then I just saw out of nowhere Stairs, Please Is it possible to fix it?
https://imgur.com/a/gkv5NqC
VTM:
"LightmappedGeneric"
{
"$basetexture" "LBWall2"
"$translucent" 1
}