It looks like you don’t have any relays set up on Primal. Primal uses a different relay list than Damus. Damus is following an old spec and haven’t gotten around to using the new spec yet.
Discussion
My guess is Primal only broadcasted the note to their relay. It will not automatically propagate to other relays.
Thank you! This is very helpful. I need to figure out how to add relays to Primal, I suppose.