Need help with custom face model

[gocengvrr]

Hey all, I've been trying to port my custom face model into the game but I'm running into an issue of which I can't figure out how to fix. I suspect that it's the armature getting messed up when exporting from blender, but I just don't konw what the hell the problem is, export settings are all default. Also for some reason the ears don't get parented to the armature despite having done so in blender (Parent to Armature)

I didn't do much to edit the armature from the game, just slightly moved the eyes bones.

 

I'm using Blender 3.6.5