There’s no difference between the Mac App Store version and the free version on this point

Well, there was a difference until I updated my App stor version.
And I'm glad I did, since I must say that all the new features by far outweighs the unfortunate "enhancements" to the behaviour of the Invisible and glass transparent boxes.

Doors and windows now always cut out both sides of straight or round walls when they are parallel or tangent to them [...]

Doors and windows, yes. And that's fine.

Would it be an idea to add that the mentioned boxes only cut out both sides of straight or round walls when they are parallel ( as alaX pointed out)?


Xiste