Transaction not yet indexed

28So1KCgio5SRR9KVXtdjmkLTetSPoDZYrXJ7AwTa6KoDAAMYxMXdcWgyBSnGYxNXKF55nsCELbdbrdGqoMnPhKG

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