Transaction not yet indexed

21ud37eMm4eJnCbu1w1Yvnt5ZKZmtzkeV7vTm97eNbihNTzKuNRLTiSbFPfS9ZjzW4nyo151nWGVDFNQX4pZsJWV

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