I’m rigging/skinning a naturalistic human model, which means a lot of bones and custom Vertex Groups. As I proceed through the bone set, painting weights and testing deformations, I’ve come to realize that on occasion, a totally random patch of vertices will show up in already-painted and cleaned Vertex Groups (VGs). For example, after painting on only facial VGs all day, I turned back to work on the upper arm weighting, only to find that many of the VGs I’d painted and cleaned for the face now have vertexes from the armpit include in them. And its the same set of “rogue” vertices in each case – no way I could have accidentally painted the exact same set very time. In fact, this “armpit” set showed up in VGs I haven’t worked on in many days.
I’ve been careful to make sure I use the “Vertex Group” constraint button while painting, to keep from spilling over the target VG. Plus I check each VG after completing it to make sure it’s clean, before checking deformation.
Before I report this as a bug (and wait apparently forever to have it addressed :(:mad: ), is it a known issue?