Transaction not yet indexed

21SbC9Bt9xne7fhPF4DPSXFmMYBHeKTEWAPq63xaHGupX7Sy1EhRxtDYCSYBajsvDzmoQaksK5UwujChXEDEUbZs

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