I am facing a similar issue but remain confused.
My single page app has a main index page of 2000px high with many individual groups which vary in height.
The issue I have is that the footer remains all the way down at the bottom of the index page, whilst some groups are only 300px high so the page needs to scroll a long way to reach the footer and I am unsure what to do about this. I have double checked and all the groups do collapse the height when hidden. Why can we not simply collapse the actual index page?
I have been told that maybe this is because groups are overlapping, but I don’t want to offset any groups because they need to remain in line (same Y axes).
I’ve also been told that maybe the new responsive engine. would work, although I am nervous because I don’t want to upset all the work I’ve done (9 months) and all the responsiveness is currently perfect.
Any ideas? You mentioned a ‘ghost’ group when collapsing?