The description above is not quite similar to my situation.
My situation is: I'm typing Chinese characters after the text cursor (insertion point), but the Chinese characters cannot be inserted. When I switch to the English input method, I can input English, but when I switch back to the Chinese input method, I still cannot insert Chinese characters, as if it's locked. After I restart LA, I can insert them(En+Zh-cn) again.
My situation is: I'm typing Chinese characters after the text cursor (insertion point), but the Chinese characters cannot be inserted. When I switch to the English input method, I can input English, but when I switch back to the Chinese input method, I still cannot insert Chinese characters, as if it's locked. After I restart LA, I can insert them(En+Zh-cn) again.