..It doesn't when I use ryosuke's gta anim manager to check out my models. Check this out:
In 3ds Max
In GTA anim manager..
In TXD Workshop it all seems fine..
As you can see, I haven't rigged it 100% yet because I wanted to see if at least the model worked. The texture error happens in the chest, both hands, the right foot and the left ear. In case it matters, I obtained the model from Gmod as a .smd and imported it to 3ds Max using a plugin, and since the model came with vtfs with the textures, and extracted those too and when I tried to put them on the model, it seemed like they wouldn't fit or something, like the UV mappings were wrong or something. Then I got the original model from SSBB and used those textures on the Gmod model, they fitted perfectly.
BTW: The model is for San Andreas.