Transaction not yet indexed

421SbkEkqZ3rqPjd1v3khwYo7XV8ixmmHRNeVF7EmMLCz1L2prkpFWomzse2HCWb2MmUaVAf1G3J2FErYZoKnZ1e

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