To reanimate the Spy's viewmodel, I animated it with a blender and then ported it with a Source Tools, but...

https://imgur.com/Fmf4dcM - Blender
https://imgur.com/uGGmiFp - In-game
(Click image to see GIF)

As you can see in the GIF, the viewmodel in the game is completely broken. The Spy's arm is not visible, and the knife comes out weird.

So I ask here if there is a way to solve this problem.

https://imgur.com/a/z0zGiGc - My Blender setup