how to use polyglot to 'just the docs'

[meansoup]

Anybody use polyglot to 'just the docs'?

When I specify default_lang to _config.yml, it doesn't work well. The main page looks like this. If I remove default_lang, it works well.

[meansoup]

I found out that it works if I set default lang as "en", but it doesn't work when I set default lang as "ko"