Transaction not yet indexed

iUfBvt3qSUwqB3upAaWsBMFNBpgkqtwro9h1ZU2KcDFitgrAF8cRfFu6Z7kaaUGR2q3A7y36mVRzYEGbvQY9Vrk

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