Problem with transitions in rotated view.(iphone)

Question

i have an opengl app with a view over it. This view has a flip transition, which works fine on portrait mode. Now if i want to rotate it doing:

view.frame = CGRectMake(0, 432, 320, 48);      
CGAffineTransform makeLandscape = CGAffineTransformMakeRotation(M_PI * 0.5f);  
makeLandscape = CGAffineTransformTranslate(makeLandscape, -216, 134);//centers the ad in landscape mode  
view.transform = makeLandscape;

The rotation behaves correctly but the transition does not show anymore.

Any idea what the problem is?