I have 2 Servers configured in my plugin. A JIRA and a Bamboo one (in some earlier plugin version).
Opening Settings Dialog for the JIRA dialog works fine. If I try to edit the details of the bamboo Server I see only a UI with everyhting greyed out. Afterwards this exception occurs. Same happens also on the latest stable release.
connector version: 1.3.7-20121120-1002
Visual Studio version: 10.0, Premium
Operating System: Microsoft Windows NT 5.1.2600 Service Pack 3
CPU count: 2