Alex,
Can you check your code and make sure you didn't set Editor.AutoParseClasses Property to false?
If you set this property to false, CuteEditor will stop parsing your style sheet file and use the default values from the configuration file.
Keep me posted
Editor.AutoParseClasses Property
Specify whether or not the Cute Editor should automagically parse the CSS classes from EditorWysiwygModeCss and populate all items into CssClass dropdown
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