Andii

I think just muting would only be a likely explanation if the sound NEVER played since the update.

I've been noticing this the most while playing killer (though I'm pretty sure it also happened when I played survivor). Weirdly though, for me it seems to only consistently happen when the second-to-last generator is repaired (so in other words, when there's only one gen left afterwards). On all other occasions, the sound…

I had this in The Game as well, but only in one corner of the Map (on both floors). That corner was completely dark with barely anything visible at all, the rest of the map was fine. Also encountered this inside the Killer Shack on Rotten Fields.