All cave sounds play at the same pitch

In the earlier versions Cave Sounds played different pitches, higher and deeper

(0.8-1) now in this New Version Cave Sounds only play pitch(1), May I know whether this is a change of MOJANG or a Bug?

Thanks to All the Moderators.

 

INSTRUCTIONS:

(create a World)

Go into a dark cave

wait until you hear the "ambient.cave" sound.

Do you also hear Pitch 1 Cave Sounds? Let me know.

 

I do not believe that cave sounds should always play at pitch(1), because of this I think this is a bug.

In Bedrock Edition the pitch range is (0.8-1) until today.