Please change your code on AFKPageFlipper.m
according to the instructions here https://github.com/mtabini/AFKPageFlipper/issues/28
I got it working with the following change:
if ([self respondsToSelector:@selector(drawViewHierarchyInRect:afterScreenUpdates:)])
[self drawViewHierarchyInRect:self.bounds afterScreenUpdates:YES];
else // iOS 6
[self.layer renderInContext:UIGraphicsGetCurrentContext()];