Transaction not yet indexed

Nkf1zpNVqrfDb157nBiaDihbQGj9n7M4YkBE9WNiAWUftWi5RUMAZdaYESqdxFEc4RKsrHVXSKpxkf9uDVG1tR2

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