Text went all freaky

I downloaded the pre-release of 1.6.1 and when I started it up, everything was fine. Then I closed it and restarted it, but the default text went all weird. The spacing was drastically bigger and it looked like there were multiple characters overlaying each other. However, it seems this bug doesn't affect any language that doesn't use default text, like "Pirate Speak". I'm including a screenshot.