Transaction not yet indexed

21Z6uWattKdDF3JahdFdp7BQfnqnAggthTdSnGqqQ4FV6fmKoMcGN8DdTujbniG46Qk6WTrkrJzqtNsXN6RmGjw6

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.