there is a problem with vonbots addon when i play it on a file attached to the course it runs well but when i link it breaks
I'm using official blender 2.79
console:
Traceback (most recent call last):
File "C:\Program Files\Blender Foundation\Blender\2.79\scripts\modules\addon_utils.py", line 398, in disable
mod.unregister()
File "C:\Users\aleksander\AppData\Roaming\Blender Foundation\Blender\2.79\scripts\addons\animation_vonnbots278.py", line 223, in unregister
bpy.utils.unregister_class(RigLayers)
RuntimeError: unregister_class(...):, missing bl_rna attribute from 'RNAMeta' instance (may not be registered)
