Cannot open Markup Document / Change Notice from Progress topic in Director


I run into an inconsistent result when working with Change Request (CR) objects in Director. I attempt to navigate to the Markup (MU) Document via the Progress section on the CR but Director instead opens the Affected Document. This isn't always the case and I click in the same place every time (see screenshot). About half the time the MU opens when double clicked, the other half the Affected Document opens. Is there a trick or fix to make this open the MU consistently?

Thank you, Patrick