I made an assembly with several subassemblies that have configurations. After deleting some of the configurations, I can no longer save any part, subassembly or assembly that ever included it, so I am completely stuck. If I didn't have the 3DExperience Connector installed, normally I wouldn't have any problem after this, but now the Collaborative Space has all of the configurations saved as "Physical Product" files and I can't even delete these obsolete configurations.

Basically, I just want to rewind to when I decided to create the configurations and move on. How can I do this?