I've just downloaded Office 2016 for Mac and when typing in Word it displays correct words as incorrect, by going into the language settings within Word, I changed the language to English (UK) however it keeps changing to Portuguese or German, both of which I don't write in. The dictionary is also set to custom, I can't find a place to download English (UK) anywhere or is it only meant to be custom? My system language is English (UK) on macOS, I've got no other languages installed and I've not had this issue in Pages either. As a reference point, Word as a whole is in English but not when typing. Does anyone know what could be wrong?