It looks like offchain.pub has the same issue.
And eden.nostr.land restricts the #p filter to 256 hex keys but accepts up to 1000 in the authors filter.
NOTICE "wss://eden.nostr.land" ["NOTICE" "invalid: \"[2].#p\" must contain less than or equal to 256 items"]
>From: unclebobmartin at 03/05/23 06:42:41 on wss://atlas.nostr.land
>---------------
>#[5] #[6] It looks like relay.damus.io does not accept hex abbreviations in the #p filter of a REQ.
>
>["REQ","ms-future",{"since":1678019563,"authors":["d90a37f79f"],"#p":["d90a37f79f"]}]
>["NOTICE","ERROR: bad req: filter item too small"]