Transaction not yet indexed

mb9Kfff4fwnPMrbwmdCxYAEgyUp6nRKswn1EijgBQvkdPTdnDuaEpK5WDxE7XAeWxLHrmkTfoD1zMZJ3tBYpXaE

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