Due to add-on's defaults on startup enabling "Solid shape" and "Fill gaps" on provided file is required.
System Information
Windows 10 64, Linux Ubuntu 64
Blender Version
2.79RC2 /object_skinify.py 0.9.2
Short description of error
skinify add-on generates good or corrupted mesh depending on host OS.
Exact steps for others to reproduce the error
create new rigify metarig, enter the pose mode, select all the bones. Go to Bone in the Property Panel, Select Solid Shape and Fill the Gaps on the Skinify Panel, press Add Shape.
As a result generated edges on different OS will have different vert idx.
Edges are generated based on armature traversal. Redundant verts are being merged by hardcoded idx before the skin modiifer is applied.

