Transaction not yet indexed

yLWW8kZmMz3aSGCuzdV2YoWsCmFGqbqPf1RVyJToDyyjkRMJCbcYa5R1dsgAWf5oQyFnZHZPd2rsEwKo5s1Yc18

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