...yesterday I did a simulation, and created a FEM, SIM, and Ideal part. Today when I try to load it again, the Ideal, and component files are associated, but the FEM and SIM aren't. See attached image, which shows the sim navigator tree.
I've tried opening in this order, FEM, SIM, Ideal, and in the reverse order, but the result is the same. I can recreate this easy enough, but I'd like to know what happened, so I can avoid it next time.