Transaction not yet indexed

3u21EHSpUf4YhvBnaNzsemmjVUEaQBnKHvzqiucm51FNbho77AkHUYAUeXKPvNnYfTH9sbnEH8TsbvRGa5hqz5mM

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