Hi there,
Actually we are aware of it, and it is still under investigation. The thing is quite strange as we tested our plugin with many other cache plugins (such as WP Cache o WP Fastest Cache) and all works correctly. Our developers are working on it and we can keep you updated when a solution will be ready :)
Be aware we usually answer tickets on support@intellywp.com. Do you still need help? If yes, do not hesitate to contact us there.