I was creating some Performances in Rig Manager, but I was in Browse mode. Everything seemed like it was working - I copied in some Rigs into the Performances, on My Profiler (not local library).
Then when I switched to Performance Mode they vanished.
When I did the same thing while in Performance Mode, I saw the option in Rig Manager to save the performance.
So the lesson I learned was "don't work on Performances in Rig Manager unless you are in Performance mode."
Is that the right lesson, or am I missing something?