Moss’s leafy shoulders snapped upward. His root-tail twisted 180 degrees. His fungal eyes migrated to his knees. The rigging—the digital skeleton that made the model move—had been scrambled like a salad. The converter had done its job on a technical level. It had changed the file extension and repackaged the data. But it didn't understand that a .glb from Blender had a different bone hierarchy than a .vrm expects.
Blender acts as the bridge.
While a GLB file is perfect for a static treasure chest or a rotating product view, you cannot simply drag a GLB into VRChat and expect it to wave its arms. You need a —an avatar that understands human anatomy, eye tracking, and lip sync.
Link your model’s skeleton to standard humanoid animations.