Music discs changed by texture pack have an infinite range of playing

I created a texture pack for version 1.7.10 which, among other things, changed the sound file for Disc 13 to be a custom music disc. When I opened the texture pack in version 1.19, the sound file played normally, however even if I went thousands of blocks away and unloaded the chunk the jukebox is in, it continued playing at the same volume. Any other music disc functions normally.

What I expected to happen was...:
The sounds from the jukebox were supposed to get quieter the farther away I went.

What actually happened was...:

The jukebox continued playing at the same volume.

Steps to Reproduce:
1. Put on the texture pack (3no's pack v0.6.1) provided.
2. Play music disc 13 (retextured to have a purple texture) in a jukebox.
3. Leave the vicinity of the jukebox.