Transaction not yet indexed

421rkTABpgWfkPXVmJSGZMPJ4oKWgrA6KyqEAoDW1aGU6Cd8faYBcP3MQ2384P2AvxESUDXCYi8r29q4dHeU1Dso

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