"Last updated" feature doesn't work

Terribly sorry if I duplicate the topic but it really ahem bugs me. The “last updated” feature doesn’t work for me - no matter if I try to check the last updates of the official, unofficial or all lists. Sometimes I can see the very last updated list and then the order is random, sometimes it’s completely random. Any tips how to make it work?

What do you mean by “Last updated” feature?

One the ways of re-ordering the lists. The one between “favorited” and “movie count”.

Oh, the list of lists, I thought you were talking about ordering films within lists.

Yeah, I can’t figure out how it’s sorting. It seems to be consistent, so it’s not random, but I don’t know what it’s doing.

And it has been like that for as long as I can remember. A shame indeed, because that would be a good way to keep track of recent updates.