New bug? Cave fly audio won’t stop even after reload

I was fighting off a swarm, and made a hasty retreat. However, the fly buzzing carried on all ‘day”. I tried reloading, even changed season now from winter to spring, but the buzzing keeps going and I can’t hear music at all. It’s really annoying. It even keeps going after I’ve logged out, over the loading screen. Any ideas - I’ve just completed 2 years and can’t face starting again, or living with this constant noise...

 

I’m having the same problem on iOS.

Made a swift exit when a bug was flying at me in the mine. Bug buzzing audio continues throughout the game.

On iphone 6+, fully updated.

 

I had same problem. It went away after I deleted game from system memory, then restart game, then load game file.