Transaction not yet indexed

nnng5U3kghTY2SBYEsJRWG6bg3bKj1URMsiFR8tRfcsbsPrqsd5M3rAML4Y86PR3Gk5NfaM8Mpi8v2pP5Ki5Smb

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