Transaction not yet indexed

SMtzXzM1HZVST4AFbeiiv3M3L6auyVSiZ2UCuUPDQkApqKQ7VX376PYa1YBqksyUAYKpxZR9Mq4M8picL7FapsE

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