Transaction not yet indexed

421bcMSZV7LbsAB2uwNWWow3qyctu6CSLMq8mpKzV8LWfsLGuA8sdoRBRXqpf2s6s4PckRNzkNU9e5YbfbEZR7bR

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