Transaction not yet indexed

21d56wXa6CfUUMPvn8kzKdAM6xmRCRq1b55MMhqrw7FPeaB7DMZjKruTGEZQSJWay21ZhRpXKpvnnPdfEFrUS523

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