Transaction not yet indexed

PPK21Eg4z7hHoZpb6BWPpDpiRcUw3Fm615ecCdQ6zfFtZ2PnEwXPMqaMYS5WR83mY9DaEnGtdVQPc4Nzo2tRtBD

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