Ok, I figured it out. Extrude Tools have a conflict with SUSolid plugin. I really need both. I am emailing the dev of SUSolid now. Is there anything I can send you to check on your end? Thank you.

Sketchup 2015 Pro

Whenever I extrude an edge, by any means, and save, it undoes the extrusion and will continue to undo every time I save. It acts just like Ctrl-Z whenever I hit Ctrl-S, and it crashes occasionally.
Thank you. It was working fine.

What is the latest version of this plugin? This is different than the one downloaded straight from the SketchUcation store in SU.
Also, you can't change the size of the pattern?? I want to set a 10' long wood board pattern, but it's stuck on 10" and won't accept any changes.
Does this work correctly at all?