WakeUp function not being called automatically on iOS 7 device

Hello, 

I have am currently using ParticleCandy (Version 1.0.27) for a game I am developing. When tested on an iPhone 5c with iOS 7.0.3, there have been issues when exiting the app via home button (or pull down menu) and returning back to the app. The particle system does not appear to automatically call the WakeUp function when I return back to the game. Therefore, the particle system stays frozen and the particles don’t appear.

I am curious as to if this is happening to anyone else. Thank you.