Ver 1.6.0.81
If any object inside a group is set to constrain — the group becomes "Constrained Group".
If you move any object inside the Constrained Group(CG) - the bounding box is not updated and all outer effects & objects get clipped by its bounding box.
I understand that if you update bounding box of CG while moving ObjectA - the other constrained ObjectB have to stay in place, without receiving "OnConstrainedContainerResize" (or whatever you call it). Simply make logical flag "IsMovingInnerObject" to avoid constraints recalculation while moving inner objects.
Now it's impossible to follow Material Design Guidelines because all these elevation levels of panels have to be symbols and all shadows get chopped off by buggy clipping behavior:
https://material.io/guidelines/material-design/elevation-shadows.html
Also, there is no way to undo it and remove any constraints information even if you set it to default values.