Welcome to the forums, @rselover!
I am thrilled to read about your attempts so far recreating locally - though I’m disappointed “raw recording” without database matching (to intentionally force the local device) isn’t leading to as stable outcomes as the cloud RFP21.
Thanks for documenting your thoughts and attempts so far, and for using the API to poke around.
I don’t have any insight into what remotes remain to be moved from cloud to local by the Bond team; hopefully one of them will stop by the forums sometime in the near future and can look into it.
(It’s seemingly the same basic issue from this thread: Device Missing from API)