Transaction not yet indexed

NMkmj4FJkFoSqVSeTuDKtyfJP8NP9eMSBboYbNYpBFnAMZNcusYShazjGwwQegBtRgxyC3nFzPUPfcYKy7k718K

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