I've searched for an answer online (with no luck) for a little more than an hour and decided it was time to make a forum post. I'm hoping somebody can help on this weird issue.
First, I'm fairly certain that this is an isolated theme-based issue. I don't have the same issue with the 2011 theme. I've also tried deactivating all plugins. Nothing helps.
Here's the problem:
When dragging/dropping a widget (any widget) from Available Widgets to any sidebar, it will drop and for a very very brief moment show the form fields before collapsing to never return. Effectively 'widget-content' gets emptied. If you refresh the page, the widget works properly.
When dragging widgets from Inactive Widgets, everything works fine--no issues.
Does anyone have an idea as to what might cause this?