One thing I want to add is that we are not pausing individual sounds anywhere in the game, the sound sources will be paused only if the engine pauses them (this might happen only if when we pause the engine, the sound sources are paused individually or something related to that).
I want to reiterate that this is very important for us as well since we actually postponing a release until the sound issue is fixed and we are stuck with tons of changes in 4.14 which we cannot easily transfer to a lower version.