It's a bug, where if you go on a certain Waite choice/path it keeps the banging/slamming SFX that never quits.
Took care of it coding wise, doing a couple other tasks before uploading a new build. (It's an unfortunate side effect of Renpy's coding for looping sfx.)
I figured it was Ren'py weirdness. I just mentioned it to make sure you knew it was what they were mentioning.
