i am using asp.net mvc 5. Periodically when displaying text (russian language) in the browser window, in some words one letter is replaced with two question marks, like this (Дмитр��й). Logic appearance of this bug can not understand it, appears on a random page, and regardless of whether the text is taken from the database or hand written in code view. What could be the problem and how it can be solved?
ps Sorry for my bad English