My Advanced Hammer YouTube Tutorial Series (Episode 8 RELEASED: Packing Textures/Models into the BSP)

did you try guistudiomdl?

http://www.wunderboy.org/apps/guistudiomdl2.php

I honestly don't think that the studiomdl.exe is corrupted but it should be replaced if you validate the game / sdk via steam.

Been there, done that, compiling in guistudiomdl, my windows just says "no response by the program". So that doesn't work either. I am really rather confident, that it has to do with some sort of scripting error.

Hm ok I will try another model . That's right, why didn't I think of that ? Thanks for the tip !

EDIT: Welp no this was not it. I tried to do the most standard of blender models, the cube spawned when opening Blender and it didn't work. So either it's my studiomdl.exe being corrupted or the weirdest bug I've ever heard of... I'll further edit this post after validating my sdk.

PROMISED EDIT: So I let Steam validate the game and the SDK. It found one corrupt file for the game and none for the SDK. I tried again to run my qcfile in crowbar but it still didn't work. So I guess I have some random a** bug and no idea how to fix it ...