Sonar sound option missing from messages in notification sounds settings.

I stopped getting sonar sound notifications for my messages a few months ago. I checked my settings and it showed I had sonar but when digging into the list of sounds, sonar was no longer there thus I wasn’t being notified. I had to select a new sound but none of the available sounds were as good as sonar for me. I see sonar is available in ringtones but no longer in messages. I would think this is something that would have been documented if removing certain sounds was planned, otherwise you just don’t care what your customers want! No surprise given you have to issue numerous bug fix notes after every iOS update because you have terrible test validation process with every Tom. Dick and Harry around the world making code changes for you🤦‍♂️.