I think LabVIEW uses a single character to in indicate a boolean value (you can set TRUE and FALSE to boolean because they are enum into the single letter T and F), but each chinese character is equivalent to 2 english letters. This might be why it doesn't work when you use chinese on boolean.
** This is my guess, I'm not exactly sure, but I'm sure windows uses 2 english letters to represent each chinese character! **
