I'm having an issue where some of the Category colors in the ribbon drop down are not matching the custom colors I've set using "Edit Categories" or through the Preferences panel. Note the "IT Services" and "Read Mail" colors in the screenshots below, which frustratingly keep reverting to the purple color.

System details:

Mac OS X 10.9.4

Outlook v.14.4.3 (140616)

This is driving me crazy, any help is much appreciated!

Thanks,

Joe