Animation aren't exported correctly ?

Hi!

I’m trying to learn how to rig, animate, and export 3D models for game engines (here Godot to be precise). While I’ve learned a lot, I still struggle to understand some weird issues that keep happening—issues I assume are due to my lack of knowledge about baking and exporting animations.

I managed to bake and export my animation as a GLB file, but for some reason, even though the animation was baked before export, some poses aren’t exported correctly in the engine. I haven't find any explanation so far as if this is a Godot or a blender export issue so far, thus my post here :/

Does anyone have an idea why this happens and how to fix it?

Godot Import View

Exact same pose in blender