Parenting with automatic weight very slow
Open, Needs TriagePublic


System Information
Windows 10 PRO, 32 gb ram, RX580

Blender Version
Broken: 2.78 and actual 2.79

Short description of error
I did a mesh in Zbrush, sculpt it with level subdivision 5. Send the mesh to Blender with GoB, automatically GoB import in blender Level 1 mesh (not a problem at all), so want parenting the mesh to my Rigify generated rig, well, this was fine sometime before (I think until release 2.76), but now it took hours or cannot do at all, for parenting the mesh (composed by all quads). Why? Cannot understand what is the problem.

Exact steps for others to reproduce the error
Parenting with automatic an imported mesh from zbrush to rigify generated rig.
here the example file: the mesh don't fit correctly with the bones, but the result doesn't change, blender took a lot of time to parenting the mesh (even if I align correctly the bones to the mesh)