Transaction not yet indexed

521MXP3BetWrtegDRjz69L7PjJDDj9zvnPGLJtvmTnqErfSyCx44gUMgDqZykLEQPduHZHqKqDLHwxpBV1RET2v4

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