Added this to the to-do list for 7.8 since this does seem to be a common request.
Thanks for the additional testing, @Norfair. Unfortunately testing those things on my system still does not reproduce the out of order platforms or categories. At this point, I'm pretty certain that it's happening only on certain machines, because I've tested other collections that cause the problem for other people, and when I load them up on my machines everything is fine. So there's something wacky going on that I haven't been able to pinpoint. It may have something to do with metadata, but that's not the *only* thing it has to do with since it seems isolated to only certain machines. So...sigh. I'm still stuck.