The closed listings sticking is not just frustrating, it costs sales!
I spend at least an hour EVERY day manually scheduling items to re-list so that I have constant visibility and to ensure that I don't have blocks of similar items all together. I don't do this because I enjoy it; I do it because if I don't, my sales suffer.
Closed listings have now been in limbo for over 7 hours. There may not be anything you can do to prevent it happening but at least having an explanation for WHY it happens would go a little way to easing the frustration.