Wildwood wisps sounds inconsistent since 3.23.2

You used to be able to hear revealer / extender wisps from 2 screens away.

I've noticed the pulsating sounds now sounds at full strength up to a (wide) screen away and it seems to fade very quickly (take two further steps away from it and it's completely gone at times).

I've also found two instances where the positional sound of wisps was wrong. One, for example, it was sounding north when it was south-east of me. I don't recall finding this before. I also checked my headset was not reversed.

Were there any changes to the sound engine in the update?
I looked into my own settings but I don't believe I changed anything related to sound.