I think it’s a reasonable assumption that the item at the top of “Up Next” will be the next track when I skip to… the next track. But no. Of course not, silly me. Instead, that item vanishes into some magic in-between and can’t be seen anymore. But it’s still there, and now it’s at the real top of “Up Next” that will actually play next. Every time I skip to the next track, the one you’d expect to come up doesn’t, and instead it’s the one you’d have expected one skip before.
Of course there’s also some more double trouble in the list. It just works!