When rocket explodes, water becomes partially invisible on it's background

When rocket explodes, it's particles make water invisible at background.

What I expected to happen was...:
I placed a block in one block high from the ground, to prevent rocket fly away to the sky, then I launched a rocket under that block.

What actually happened was...:
Rocket were standing under the block and explode. There were water at background and the same moment with rocket explosion water partially disappeared for a 1-2 frames.

Steps to Reproduce:
1. Get to some place with water
2. Place some block to prevent rocket fly
3. Place a rocket under that block while watching at rocket and water in the same time. The bug should appear when rocket will explode.