I write papers in Word in 2 languages in the same files. My other language except for English is right-to-left language. When I write in my language, word changes my font in English only to italic. Every time I need to ctrl+a all the file, then ctrl+d to enter "font" section and change the font style to "regular". After I continue writing, and changing from time to time the language in the file, the font in English (only in English) returns to be italic again.
It seems like a bug but I don't know how to solve it.