Transaction not yet indexed

421Em71V34dyAn7GxP9K6w1NWsWu7HNf2bhgX2D2cBX2gM9pyWcZf2rhNwnVDWJBtq9ch9S95xYpUSxPQhUDJiaA

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