Transaction not yet indexed

Nt8nkM2jwWu3XmaForqeU2gLK6V8nTEtSvTJcbaMSSxDxjooqVL42mTnYeEk7sMdaFCWGmm1mD77HqeMXBcDm18

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