Found this while making groups of mini trees. I have 5 mini trees on the left side and 5 on the right side of my display. I put them in as individual trees, labeling them mini1R, mini1L, mini2R, ..... mini5L. Then grouped them as Left side and Right side (5 each). Then grouped them as a full group of 10. Issue was when I used the left or right side as a group and added an effect, it doesn't show up in the full group of 10.
Hummm, after looking at my post, I guess it's OK like it is, I just thought it was a bug. But maybe not. It would be duplicating the individual elements, now that I look at it.
OK did find a bug, it's copy/paste. When the group is closed and you are doing a copy paste, it doesn't copy those it can't see. They must be visible to copy.
Alan