Transaction not yet indexed

21ucHUpB7R7znWGcjzBHWfcoFS1wDw3J5H5BBBTAEwG2WgqsmsGyb1KYd4K6eLPkKVaPPBL2kFv2y9QqmadMofC3

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