I have an asp.net page using the WebPartManager. It has nothing to do with SharePoint. I have a list of web parts and users can add/remove/edit/move/change chrome color etc. They have 2 WebPartZones to work with. All the settings per user is saved in WebPartPersonalization store. This has been out there for a long while and users have been using to personalize their page. All of a sudden the users are unable to move web parts around. I see the pointer cursor changing in to the "movable" cursor (arrows in all 4 directions). But I am unable to move the web part around. There is no postback or no server calls when I try to move them. I can change WebPartChrome color, edit, add and remove. The DisplayMode for WebPartManager is EditDisplayMode.
This is so weird and I am unable to understand why this is happenning. Has anyone experienced something similiar? I haven't found a good document explaining how the moving of web parts is handled with in the WebPartManager. Any help is appreciated.