# Can't do loop cut or ring on my mesh [duplicate]

My problem is that I can't ring or loop-cut a set of polygons that are co-planar.

This is the sort of thing that's happening, as you can see I can only affect 2 faces at a time. I've cleaned up the mesh, welded all vert's and made sure there aren't any holes in the mesh in the area that I was to cut a ring/loop.