Cannot create custom sound events

Partner Rank: 1

Partner Team Reporting: Noxcrew

Verification builds and Platforms: ver. 1.11.1, build 2098024, Win10

Summary:
New 'individual_event_sounds' added in the sounds.json aren't recognised by the client.

Impact:

None of the new entity behaviours can have custom sounds attached to them unless you replace the limited amount of current event sounds (which would affect vanilla gameplay). This would cause a very strange quality inconsistency with all the new entity features coming our way (Dramatized version: It's like going to see a movie and they forget to render it out with the audio track!!) 

Repro Steps:

1. Create a new sound and reference it in the sound_definitions.json
2. Create a new event under 'individual_event_sounds' > 'events' and link reference the name of the sound you referenced in the sound_definitions.json (This is because entity behaviours specifically use 'individual_event_sounds' from the sounds.json, as opposed to anything in the sound_definitions.json)
3. Add a component like 'minecraft:spawn_entity' to a custom entity, then add the parameter 'spawn_sound', referencing the name of the sound you made under 'individual_event_sounds' in the sounds.json
4. This method should work but doesn't. However, if you change the name of your sound reference to an individual_event_sound that already exists, such as 'fizz', it will work.

Observed Results:
No sound is played

Expected Results:
The custom sound that was linked will play when the entity plays its behaviour.

Screenshots/Videos attached: Yes/No

No