Transaction not yet indexed

421UkGaSxuPoZvA7JtExBu9baCcRwLYhTejb8ECBHpQcFJzrbPWnS8QLBYHDBsjXfJp8F7dpMNHEGtVuvkcA8fDp

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