Transaction not yet indexed

421vhAFUDGs8rRCsmGE4Ya8SE52FXYByxwHVw2Nk4oo9hcTWSsQ3oDdDj5h4y1BBiDHhi2eRT4jmaA6GCVH5nZD1

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