Transaction not yet indexed

5r21QHnMcksFFtYrnSkMh7FMXSGxZaQ1HdAjNyWxYc9s6X7ZbK4eLpo2WhvFdTuoPznWgy9pypTrSNUFLpTCq5ff

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