Japanese/chinese ideograms?

Hello!

I really like the work on the skin, but its fonts seem to be missing characters. My interface is in English, but I have a lot of Japanese/Chinese music and it sadly gets broken when displayed in Estuary (it doesn’t happen in the web interface, for example). It looks like this: http://i.imgur.com/qcJT4Li.jpg .
Is there any fix?

Thank you in advance.