Transaction not yet indexed

21K6HdGSAFtAVGHm6EqUpmqPiMSjjvGS3RiHsQRmqBvegJDS9zxqJvq8cML6kv1GNHJec5g9w5BpbXh1rt4uMZv5

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