Bug Model part sticking out and can't be removed or edited

I downloaded a robot model for my project and when starting the game, one of his right claw's parts starts to stick out while the left claw is ok. I can't delete or edit this part of the model so it is always there. Also I've noticed that in character avatar there is no rig for this specific part of his right claw while there is a rig for the left one. Are these somehow connected to each other?

 

We don't have enough info to tell for sure. You could post an image on imgur.com and link it here.

My guess is that the model has a flaw in its vertex weights, so some unrelated bone is affecting a part of the mesh that was difficult to reach. Robots and other mechanical things should have each stiff part follow only one bone.

 

I uploaded some screenshots here.

 

Looks like they plumb forgot to export one bone. I would contact the artist to see if they would fix it for you.

 

I see. Isn't there a way to fix this small issue myself?

 

It's a rather technical fix if you don't have the original art files (e.g., Blender or Maya project files). Even with those, it would be difficult to walk someone through the steps necessary to make the fix.

 

Okay, thanks for help!