Grid-Bug :: the last character disappears if writing Korean on an editable grid.

I'm not sure there is anyone has tested grid using Korean language.
I tried to write Korean on an editable grid.. but when I did it, the last character was disappeared.
It only happens when the last character is a Korean character and only last one disappears.
If you have any solution for this, please e-mail me(trueman23@naver.com)..