AudioEngine or SimpleAudioEngine doesn't play simultaneously

I tried both AudioEngine and SimpleAudioEngine but both doesn’t play simultaneos play, neither Windows 7 or Android.

Whenever program calls simultaneous sound effect which is overlaping with another (second sound effec called in update method), its doesn’t play. Only one sound effect playing at same time.

If i dont use update method to play effects they works without problem simultaneously. But in my case I need to play sound in update method.

is there any way to fix this?

I am using cocos2dx v4.0 , platforms : Windows 7 and Android 10, NDK is almost latest version

Problem solved, actually there was no problem I noticed after checking code again