Transaction not yet indexed

421mYutaiJM8ZiFhCeMLUPgkmSB2T2rs6wRNakMQfc6reTLrCcBU9zoVCUyTiaYE8DSidk12ZnhvGunALYMuNvdW

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