Transaction not yet indexed

iffNPm9dTEL5fMmiNdnwsc1W6mPeK1Sf2BLwPMMF6Y7mp7PFfzKWdveG8zs78Cf9DQnjEe48A5gdTyYcDBVNKpK

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