ohh. that's great if there is no bug for this. thanks for letting me know.

I just made this in practice mode now. see att.

attached the situation. i am pretty sure that is able to hit both side

I had a game got foul after break off, the red ball pack is still tight, it shouldn't cause free ball since the bottom red is able to hit both side although a side was blocked by the other reds. Since red block by red will not cause free ball rule. Hopes this help.