Transaction not yet indexed

NBkKcSR1UpgUrMyvh93MkxP6pCtd2tRmhX8kFfTuMP6x8GGKwpKzYYyoGCYLMoEnFTRbTzGfMfdYvuZ4wDJyNSZ

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