Inconsistent Box Edit/Blocks

Simple rectangle, make it a block, I can change the size of the parent by gumball and the copy adjusts as intended, I can do the same with scale1d, works fine. Open Box Edit, changing size results in ‘unable to transform object’ ? If I move position in Box Edit, they both update, if I use scale in Box Edit they update sometimes ? It seems inconsistent, am I missing something here ? I have also noticed that using copy & paste or gumball/drag/alt can cause inconsistencies too, copy/paste seems to result in not being able to update the objects, gumball/drag/alt seems to be ok.