Transaction not yet indexed

TudUN5k4EUvFRRXTLKt3ijCbZEQCovRigoGfRvAnFai8R2n4VEEMeF6a97DbG9eqy8FDZv7MHw1vmVCSszLBcD7

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