Transaction not yet indexed

NKX6M18jATPPPYwUYHbjDtySnZYxjhrApBwwFfcPFpy2QXV2iwypj7NNs8bxCjgrihBbFPhAZSg2KoFuMUCoJkZ

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