User blog comment:Kirkburn/Technical Update: September 2, 2015/@comment-24757753-20150905094829

> On communities with three-letters names (e.g. rio.wikia.com), the "in your language" notice will no longer incorrectly point to Community Central, rather than the intended community.

On a non-English wiki with a three-letter name + no language prefix (example where I saw the issue: http://vuh.wikia.com/ in Polish) and the user language set to English, a "in your language" notice shows up directing to http://www.wikia.com/. I'd assume it's a related issue?