Still having probs trying to do this. I input the event ID but it doesnt seem to actually filter any events by id, it just wants to delete all events. Other filter options like npub and kind # do seem to filter successfully.
Discussion
Using the values from raw event here
It looks like there aren't many events on your relay at wss://proxy.nostr-relay.app/bc6cc13be89d886ac088256e704a9f288fce3978dafad634101f8f3d072c3e9d
What you're seeing on Jumble is probably coming from other relays.