Live shapes loose their controls in Transform panel once they become a part of a compound shape
If I have a Rectangle shape and then subtract it from another path with Alt held (to make a live compound shape), I loose ability to change the width and height and rotation of this rectangle.
That is if I select it with the Direct/Group Selection tool — Transform panel does not show Rectangle Properties section, and Properties panel does not show anything from Transform at all — it has a no selection set of buttons.
This is crucial because the rectangle I subtract is rotated, and simply editing width and height distorts it.
Isolation mode does not help.
A workaround is to release the compound shape each time I need to edit width and height and build it again.
Another way is to use Dynamic Shapes plugin from AstuteGraphics, which remembers the live state of the path even as a part of a compound shape.
Sometimes it works alright, but sometimes — don’t. I have no idea what is the difference!