Funky Inset phenomenon

 From:  plish (MPLISHKA)
I drew a curve and then created a path using a curve as well. Extruded via a path. I then played around with some of the points on both the path and curve to tweak the shape. Saved a reloaded the shape. I then tried to do an insert on the top surface and it created a wierd cut all the way through and didn't eliminate the inner part of the inset. Thoughts? Thanks!