Having an issue here, I have several IK target bones to control my armature that I do not want to influence the deformation of the mesh directly. I went ahead and double checked that all of these bones have ‘deform’ unchecked. Then, I parented my mesh to the armature using automatic weights and weight is being applied to these IK target bones, additionally vertex groups are being created in the mesh corresponding to these bones. It appears that unchecking ‘deform’ for these IK target bones is doing nothing whatsoever. Anyone have any thoughts? Thanks