“Esc according to exit full-screen mode,” the words have changed

More recently, to see the video, when the occasional full-screen, “according to the esc from the full-screen mode,” the words have changed, I remember when I was in bold type or song, but now has become a cursive word, as if Japan is the font .I remember a few days ago had to download several fonts, you do not see the fonts look like this, I do not know what the reason, I do not want to have a re-system with a view to have encountered this situation told me that in the Thank you this.

With what the player software?

Subtitles are split or integrated?

certain player can change the font and the location of the subtitles, you might inadvertently run into shortcuts.