I have a relatively simple body with some contours on a small model of a boat that I am trying to make hollow. The shell tool refuses to work. I was successful with another boat design very similar to it and the only distinction I can make out is the isocurve lines on the top face (which is flat). On the successful one, the curves converge at the point in the front. On the current boat, the curves are just a grid and don't follow the outer curves of the boat at all. What is weird it that they do follow the boat when I only select one rail from the top profile, but once I select the second the curves just become a grid again. I've done some things since then, but just roll back the timeline. What's also weird is that I can shell from the curved part of the body, but not the flat sides, so the curved may have some discontinuity but I cannot see it nor know how to find them.
I really have no clue what is going on. I've spent a few hours trying to figure it out. Any help is appreciated.
Fusion
