If you notice that your side panel blinks when you either click the cite button or click your active document, please refer to the following articles:
For Office 2013 - Description of the Office 2013 hotfix package (Mso-x-none.msp)
For Office 2015/2016 - December 8, 2015, update for Office 2016 (KB3114383)
Note: The blinking should only affect Office versions 2013 and 2015/2016.
Since the above requires the adjustment of registry keys, do not hesitate to contact firstname.lastname@example.org or call 1-888-349-9842 and one of our support agents will be more than happy to assist you.