Duress not working when only 1 target available

Since the last big patch this week I've noticed that, after the introduction of the new auto-target feature when there is only 1 target available , duress is failing.

- If the selected opponent has multiple selectable non-creature spells in hand, it works as expected and as before the patch
- If there is only 1 possible target in their hand though, it appears auto-selected in green aura by default; but from here any option fails:
- if you leave it as it is and click the "continue/accept" button it doesn't discards the target card
- if you click again on it and then push the button it doesn't work either