Yast often halt in Chinese local

I use SuSE in Chinese (RC_LANG=zh_CN.UTF-8) when I start Yast(kdesu to root ) , the scim often start second ,then in my system applet has two scim icons. somtime when module of yast has started,but the second scim has not start ,that Yast modules always halted. I think that is bug,but how can I submit a bug,thanks!