Model Importing with Weird worping

Currently I have been making weapons in blender 4.3 and most models have imported fine.

However, recently I have encountered a strange problem with fbx import where part of the weapon is warped and not in the correct orientation (Reference images below).

I have tried applying transformations and checking the export preferences but I haven’t found any fixes yet. If anyone knows what the issue i would love the help. I will send refernces to the model and my export prefernces below:

Model in Roblox Studio
Bad Import

Model in blender and fbx export settings

fbx export settings 2
Bad Import3

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