Hello.
I try use CCTransitionPageTurn with simple layer scene, which has CCSprite 480x320 image - its working,
but while transition playing animation, texture on transition flipped to 90 degrees.
I also tried setting CCDirector::sharedDirector()->setDepthTest(false); or true but this has no any effect.
I attach short video which show how this happening.
I used github version.
20111220_2153_36.avi.zip (2735.5 KB)