WPS Office doesn't display certain characters

Hello! I have encountered this problem and kind find a solution to it on my own, so any help would be appreciated. When I type the unicode characters ѐ and ѝ (Cyrillic), they are not rendered correctly. This is how it looks:

http://postimg.org/image/tphwmykbl/

But when I open it in LibreOffice, or Word Online, it is rendered correctly.

http://postimg.org/image/vyyy3617b/

Is there a way I can change this?