Zigzag Extrude
I sometimes get a very malformed set of faces when I use the add-on. What could this be?
If parameters like the Inner Depth or Taper are too high, this can cause non-manifold geometry and strange effects. Try reducing parameters like the taper, bevel and inner/outer depth.
If you keep having problems, get in touch and I'll see what I can do to help.
I have a new feature suggestion or issue with the add-on. How do I contact you?
I would welcome you contacting me through this website or through Twitter for any questions of suggestions you might have.