[WPMU DEV SEO] Automatic Links not generated for Japanese text

I've added a list of Japanese words with associated URLs in the text area provided by WPMU DEV SEO on the "Step 5" tab for Automatic Links, however, Japanese words aren't recognized by this part of the plugin's functionality. What can be done about this?

Please see attached screenshots.

Theme: WooThemes Canvas 4.1.4, Framework 4.1.5
WordPress 3.1.3 Multisite (4 subdomains, 1 for each of client's real-worldd locations)
PHP 5.1.6
CentOS 10.2 VPS

If there's any other config info needed, please let me know.