Bug report: overwrites text as wingdings

Hi, I have a theme that has one page with icon gallery. When ultimate branding is active, text is shown like http://postimg.org/image/luo9hwhdx/ and when deactivated everything is normal http://postimg.org/image/att4cvp51/

I also tried to deactivate each "plugin" inside ultimate branding until none was left, but no effect.
Can anyone point me to the right direction how to fix this?
Thanks.