I've gotten a crash after renaming a rig on RM in previous versions. You just turn off profiler and shut down RM and restart everything.
It only happened once to me too, and i did he same thing, seems stable now. Still some amps with the locked volume drop, but it`s not on any amps i actually use, so i don´t mind that much. It`s just the eerie feeling that there is a bug lurking in my Kemper... Not a happy feeling.