A bug?

• Rigging from La Femme HR dev rig. I checked. it's symmetric (waist and ab movements. And the underlying mesh is symmetric).

• Importing an exactly symmetric clothing mesh (tights, done in blender), which is very close fitting (no poke through), with actor seams that very closely match La Femme actor seams.

The result is not even close to symmetric. The donor mesh and target mesh are symmetric. The target mesh was created in blender, using an applied mirror modifier. The x axis is locked to symmetry, in edit. It's symmetric according to python (dumping verts produces an array of symmetric verts)

And yet, although the HR rig bends symmetrically, the target rig does not. Moreover, when I apply rig symmetry to the resulting clothing mesh, nothing is fixed. The asymmetry is actually in the bulge weights. The rotation weights seem to be correct.

Since the donor and target meshes are symmetric, this has to do with poser's calculation when it transfers bulges. Moreover, applying the rig symmetry doesn't change it. Something is wrong in how bulges are being calculated in symmetry (which is probably the same as mesh to mesh transfer, since it's copying a vector from one vert to another).