Web part works with Windows Authentication, but not Forms Authentication

Jan 30, 2009 at 12:21 AM

This is strangest thing!  If I merely switch from Windows authentication to <authentication mode="Windows"> to forms authentication <authentication mode="Forms">, Silverlight does not render at all (I don’t even get the % loading symbol)

 

Permissions for the Windows and Forms default user are set the highest for the site (site collection administrators).