Check the notes I’ve tagged you in over the past few days. If you want to reproduce the problem yourself, just add a relay to your Inbox/Outbox list using Amethyst, save it, and sign the new 10002 event. Repeat this a few times and either use Vitor’s filter above or my "Citrine fix" script. Both will return more than one kind 10002 event.

Also, it seems Haven is accepting but silently ignoring Kind 5 Deletion Requests, so my script doesn’t fix the issue. Deleting the Outbox database and reimporting notes from well-behaved relays does fix the problem.