Beacon noises don't show up in subtitles

How to Reproduce
1. Place down a beacon on a 9x9 surface of gold, iron, diamond, or emerald

2. When the beacon shoots its beam into the sky turn on subtitles

3. The noise doesn't show up
(also note that this is the same for conduits)
https://www.youtube.com/watch?v=idWmP1ygD84&feature=youtu.be