I have MS Office 2016 in 3 languages (English, Dutch and French) and Office 365 without MS Office (to use Teams).
Since I have this configuration the language is no longer automatically recognized in Word nor in other programs such as Outlook (although this option to do so is activated). Whatever I type, it is always interpreted as English. I usually type in Dutch or French. If a selected a text and mark it as another language, and after that insert a new word in Dutch, it is again interpreted as English. Adding the language to the Normal style does not help. Very annoying... Is there a solution for that problem?