Transaction not yet indexed

NKUL2nsnEbYMWzBKzWvNdp3zGEdnLpRJkTrqevTnwewVs4PoMP4XP5kxEJueY4MJAzmXCufhMVG9S3E4csfhL23

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