In the Control Panel (using WP 3.0.1) I’m trying to make a basic change to the Right Sidebar from the Widgets screen. When I try to add a component, it moves to the sidebar panel, and I can save the page, but the widget disappears as if it was never added. I also tried to delete a widget and the process never completes.
In my IE status bar, there is an “Error on page.” notice which brings up the following error message:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MDDR; .NET CLR 1.1.4322; .NET4.0C; .NET4.0E)
Timestamp: Tue, 23 Nov 2010 23:53:29 UTC