Im gonna bump this with new information

I have figured out that it's either a glitch happening when exporting from Blender or Crowbar

I figured this out by ONLY rendering the model i had decompiled, renaming it in the QC, Compiling it with Crowbar and seeing the same bug ingame

By renaming it i mean renaming the Model direction at the top to change the name

Bump Update:

In the model viewer it looks completely fine (I added it to the Imgur link)

I had this problem too,l what happened is that the axis of the bones are set to z+ (z axis up, blender default). select the armature in edit mode hit CTRL+N and select Y+ (also hit a to select every thing). it looks fine in hammer because it probably has no animations, once in Garry's Mod it adds animation with the Y+ axis up and the model and source have no clue how to respond, causing that mess of your model. I hope this helped, I been using blender for about a year now and i found this out yesterday.

Originally posted by Aperture_Areospace:

I had this problem too,l what happened is that the axis of the bones are set to z+ (z axis up, blender default). select the armature in edit mode hit CTRL+N and select Y+ (also hit a to select every thing). it looks fine in hammer because it probably has no animations, once in Garry's Mod it adds animation with the Y+ axis up and the model and source have no clue how to respond, causing that mess of your model. I hope this helped, I been using blender for about a year now and i found this out yesterday.

I'll try it when i get home again thx for the answer ahead of time though

(CoolSmileyWithAGun)

Originally posted by Aperture_Areospace:

I had this problem too,l what happened is that the axis of the bones are set to z+ (z axis up, blender default). select the armature in edit mode hit CTRL+N and select Y+ (also hit a to select every thing). it looks fine in hammer because it probably has no animations, once in Garry's Mod it adds animation with the Y+ axis up and the model and source have no clue how to respond, causing that mess of your model. I hope this helped, I been using blender for about a year now and i found this out yesterday.

Hey i seem to be a bit confused i added you so i could send you some pics or something if you have time to guide me through?

Because i tried what you did but it bugged out even more so if you could hit me up or maybe record a quick 5 min video of you doing it (Because of time zones) and sending it my way that would be lovely i won't use more time than you have a no is acceptable :)

https://imgur.com/a/a1VgHaW

I can't explain this but the rig and the physics are not lined up

You know what i think i found out the issue but i don't have a fix so i will make a new post with a title that should explain the issue better hoping that more people will get an idea of what the issue is and might be able to help feel free to reply there