>>39746416Make sure to select the whole model (armature + mesh) in Blender when exporting, not just mesh.
>>39750038The models come with weighted bones by default. It's enough to pose them manually. If you want to use downloaded pose/motion data you need to add Japanese names to bones. And to make the models actually behave well, especially when moving, you need to edit the default bones a little, add new bones including IK bones and add physics (rigid bodies and joints). You also need to make UV morphs if you want to use eye expressions from texture sheets and create bone (and possibly vertex) morphs for mouth expressions.
