Commented Unassigned: Crash while making custom update [264]

Hello

Any idea, how i could find out whats wrong. When i try to make custom update, GUI crashes after adding "action" to the custom update.

Wsus version 3.2.7600.265

Wsus Packagepublisher Release v1.3.1504.15

Any help appreciated.
Comments: Btw: Your WSUS isn't up to date. It's missing http://www.microsoft.com/de-de/download/details.aspx?id=43633