The sound of the new mobs do not appear in the subtitles! MC 1.10

Summary:
The sound of the new mobs do not appear in the subtitles of Minecraft

What I hope:
I hoped that the sound of the new mobs appear in subtitles

The bug:
What is happening is the ambient sound, the sound when it hurt or when he dies is not in subtitles.

Steps to reproduce:
Activate subtitles and get close to the new mobs, hit or kill them

Obs: Sorry for my bad English, I am Brazilian.