I just posted this question on the support community. I wonder if you have experienced the same thing:
Just purchased this iPad mini three weeks ago. I’ve been switching back and for using Siri to dictate English, Simplified Chinese and Traditional Chinese in emails. The way I do it is by going to Settings/International/Language/ Select the language I want. One day, I was in the English mode, in the middle of my dictation, Chinese Characters started to appear and the keyboard changed to Chinese. This also happened when the language setting was in Simplified Chinese. In the middle of a sentence, the Traditional Chinese characters started to show up and the keyboard switched to Traditional Chinese keyboard. Besides use Settings/International/Language/ Select the language I want, I didn’t change anything else such as keyboard settings or Siri language setting.
I don’t know if this is a glitch in the software or something is wrong with my iPad mini. Anyone has similar experiences?