Transaction not yet indexed

MRN3j8GRPUnUsB6Ftg8htSZ3U8cSC3gmL6mcaMYmGPRgmL4hVtPw2onkE7u6zmemsgMqNru6KUfAz6fj4BgMCz7

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