Hello,
I just created account on that forum, so hi everyone :3
I need some help with my project I am working on with Godot, because I can't find any solution just by google (maybe I don't know how to describe my issue simply enaugh).
I created rigged character model for my project with separate meshes for different body parts. I want to make some equipment system, so I want be able to change meshes of selected body parts. I also created placeholder meshes for equipment (that are just copies of body parts). When I imported my character for the first time everything was working as I would expect. I had character model with body parts separated and I had also meshes for equipment, both body parts and equipment meshes were deformed properly during animations. I started working on more animations and when I finished I reimported my character with new animations I added (there were no meshes changes at all), but suddenly something strange happend. Now my character body parts meshes are still fine, but for some reason equipment meshes seems messed up and not working properly any more. I am very confused with this because as I mentioned before that equipment meshes are just copies of body parts, so why body is fine while equipment are getting messed up?
Below is image showing for example what happened with my "Helmet" mesh (it is just head mesh copy):

And below image how character looks like with all equipment parts enabled:

As I checked when I remove "Skeleton" from MeshInstance mesh itself seems to be looking ok. Maybe someone already faced similar issue and know how I can fix that? I think I could try to remove whole scene and create it again, but I hope there is better way to fix that. I tried clearing import cache, but it didn't helped at all.
Some additional information that may be useful:
Godot version: 3.2.3 stable official
3D modelling program: Blender 2.91.0
Exported file: glTF2.0 (With default Blender exporter)
Operating system: Windows 10
I exported my charater in rest pose if that may also matters.
Thank you in advance for any help.