I use lists for many things in OneNote and they get big. But sometimes OneNote does not remember which parts of the lists I collapsed, so it shows them as expanded again next time I open OneNote.
Not EVERYTHING is expanded - only certain parts that I know I collapsed. And syncing does not change the outcome.
I've had this issue ever since I discovered that lists are collapsible (over a year ago). I assume it's a glitch, but is there a workaround to make sure OneNote remembers the collapse action?