Transaction not yet indexed

Nk6iMF7RPDmaaZZdT9qwhgi8yRrWC1jEVcfxExxgStQ1j4eFHtCGzfbMMusN2XCdmrVGa2zQE82rQfaUX1ESSyP

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