A few sounds are not used in the sound event ambient.warped_forest.mood

The bug

The sound event

minecraft:ambient.warped_forest.mood

does not contain the following two files:

• minecraft/sounds/ambient/nether/warped_forest/mood8.ogg
• minecraft/sounds/ambient/nether/warped_forest/mood9.ogg

How to reproduce

Execute

/playsound minecraft:ambient.warped_forest.mood ambient @a

→ You will never hear the listed two sounds