Its sometimes doing this https://commons.wikimedia.org/wiki/File:Chyba_u_kompaktn%C3%ADch_jazyk%C5%AF.png
Topic on Talk:Universal Language Selector/Compact Language Links
I'm getting this too, on en.wiktionary. Noticed it yesterday. Seems intermittent, most of the time it'll be "broken", but if I keep reloading, sometimes it displays correctly.
Race condition maybe, with load order/timing making a difference?
I haven't managed to have it "break" when using debug=true.
Hi,
This is a known bug. It will be fixed on the live Wikimedia sites later today. Thanks for the report and sorry about the inconvenience.