Hello SW Community! I have an issue that I cannot figure out, despite extensive forum searching...I have an assembly with two configurations that are exactly the same. In the assembly is a 'parent' or 'master' part consisting only of sketches and planes, and a second 'child' part that has the parent part inserted (Insert>Part). The child part has a simple extrude in it that references some sketches in the parent. In one configuration, I have no issue, but as soon as I create the second configuration, the child part gets the traffic light rebuild symbol and will not rebuild.