Depth charge explosion cut off problem
 

Hello I have noticed that depth charge explosion sound effect and others abruptly cuts off thus ruining immersion. I have uploaded a video which should make understanding easier.
The best example is at 0:13 mark. The depth charge explosion sound is being played but it gets cut off after around 3 seconds while the actual audio file is 5 second long.
https://www.youtube.com/watch?v=BKbRgMOS6NU