TROUBLESHOOT
VOCALOID3 Editor
It depends on the default language settings of your OS, so it may happen occasionally.
If you wish to change the language of the editor, please follow these steps: choose [Settings] → [Preference] → [Other Settings] → [Language] → [Japanese (or English)], and reboot VOCALOID3 Editor or Tiny VOCALOID3 Editor.
If you are unable to find a solution in the Troubleshooting section, please use the Inquiry Form to submit an inquiry.