I just updated to 1.0.0.1380 today and recompiled my existing, working app. I now get a pop-up that says 'This site says... 'O8' is undefined' with an OK button. I have no clue where that is even coming from. Weird.
So I'm curious did you do anything further with adding additional forms? I tired setting a 2nd form's parent to the panel under UniPanel2 in the project, but it would never resize correctly. Driving me crazy! LOL