Sometimes whitelists on private relays randomly decide they no longer want to coopoporate with npubs on said relay and may block write access. Might be worth looking into. Nostr relay implementation on Start9 was paticularly fussy. Required daily attention to keep the private relay happy
Discussion
Hmm. Ain't perfect, but worth looking into.
I accept the trade offs with the Start9 implementation. It is poorly maintained as well. No updates since last November. I noticed Kojira's relay is on 0.9.6 The one (very easy to get up n running) on Start9 is 0.9.0 That could have a lot to do with what I described