That's because there is no en_BE locale, and the paper size is a locale element, so we don't know what to do in that case. (One can make a human judgement that of course it should be A4, but it's tricky to get right in general.)
That's because there is no en_BE locale, and the paper size is a locale element, so we don't know what to do in that case. (One can make a human judgement that of course it should be A4, but it's tricky to get right in general.)