Transaction not yet indexed

21mtEKGYbyRqU1cmFChyspoxjvKEPiohtoVUp2C2cMoQXCb2nF9vXnnnXb9vXrp2fVWtWrUY4hHKjX3SqiN3BooR

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