Transaction not yet indexed

pS991imVa8hFHnpgmtaV66LFEtzFfhC6FZcgTWyaK5eZoTTZG8C5tcww4q16c8tadA7GkFcSquPvMuZRsAy1fmJ

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