After upgrading to Xcode 6.3 (release version), Xcode now freeze every time I open a XIB/Storyboard file that includes an IB_DESIGNABLE view that uses a cu
Another workaround is to change the file extensions to all of your font files and load the changed file names from Info.plist. This way you can keep IBDesignables and still use your custom fonts, but wont be able to see them in the Font Picker in Interface Builder.
All custom fonts that were peviously set from Interface Builder will continue to work, but in order to change them or to set another custom fonts, you will have to do it either from code or to modify the Storyboard or Nib files from text editor in order to set the font name.