I'm having some issues with autopo in 3dcoat. I have a complex 3D mesh that I obtained with photogrammetry. It's very high poly and needs reducing, and is one sided mesh, almost like a very complex plane. When I use autopo on the object, it goes through all of the stages it should, loads for a minute or two, and then nothing changes. There is an added object to the retopo objects, but I can't seem to use it or drag it into the scene, I just see my extremely high poly model. The mesh looks identical, and I'm put onto the strokes tool? Why is this happening?