Weaving working only with example mesh

I am playing with the weave example tutorial. It works fine with the mesh provided in the example, however, when I input a mesh of my own I get an error at the'Thin Mesh' component the error is  "Solution Exception: Index was out of range. Must be non-negative and less than the size of the collection." . I have tried to exchange other input meshes some work, others don't. Cube work. What is different about the example mesh and cube and all the others? Thank you for any hints.