Xcode 7.1 beta 2 (7B75) shows two view as if there is the same

I recently create a new app project with a single wiew. In the view there are buttons, labels and a image graphic created with a class. Now I added a new view in the storyboard and linked with a segue in buttons, one for switch to the new view and one to back to first view. The problem I have is that the two views appears identichal to the first view. Only when I move the second view it redraws and look ok with it's controls. But when I add a button or made some change, the view back to appear as the first one. Anyone had this problem?