Transaction not yet indexed

Hx21td7stQi7TANthjJKfHVRFhErLCbF3UwVZNeRH94uYDjmnJqcrmLggTf1tFJVaQDYo2UPHPpcv7UXLjDPLms

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