Transaction not yet indexed

4So21NYMppY6qXk25D5sZZfXoKah5PZXi4ZJe3CnhnXnGx41aXzf9R5mQWbvRsN8y3LEoc5XngTvr883UPC2HFtM

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