Setup template model
1: pose the model correctly.
2: duplicate the armature modifyer. and save as shape key.
3: go to the shape key and make it active.
4: select the part of the mesh that was moved (the legs)
5: go to vertex -> propigate to shapes
6: delete the shape key that was created.
7: apply pose as rest pose.
without shape key stuff its:
1: pose model correctly.
2: duplicate armature modifyer.
3: apply the copy of the modifyer
4: apply pose as rest pose
bpy.data.armatures["Armature.001"].vrm_addon_extension.vrm0.humanoid.human_bones[13].node.bone_name
vrm_addon_extension.vrm0.humanoid.human_bones[14].node.bone_name
buggy version
Head:
Tail:
fixed version
Head:
Tail:
bpy.data.armatures["Armature.001"].vrm_addon_extension.vrm0.humanoid.human_bones[9].node.bone_name
vrm_addon_extension.vrm0.humanoid.human_bones[10].node.bone_name
buggy version
Head:
Tail: