Transaction not yet indexed

iUUSQNtzX39LZWbTZFUHbX29F7dhjoVhRPgFast3vM3NY6Tnow7ZdyF3Mx9cqnbkitFjv3Pn3u62m7QdRMGa3Ye

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