PerformancePoint 2013 Dashboard Designer fails to start after October 2013 CU or December 2013 CU

Issue Small update on an earlier blog post by Warren around this PerformancePoint Services/Dashboard Designer issue.  After installing the October 2013 CU, or the December 2013 CU for SharePoint 2013, the Dashboard Designer fails to start for all users, and gives the error “Application cannot be started. Contact the application vendor.” Cause The dashboard designer files were not signed correctly…

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