What triggers the waterfall sound? Rain? Duke Fishron?
I know of 2 instances where water sound plays when it shouldn't:
- Rain. If you exit a world while it's raining and then load another world where it isn't raining, the rain sound will keep playing in the new world for a while. This bug has been around since forever.
- Duke Fishron. Sometimes when you win a fight against Duke Fishron, a water sound starts playing. It continues to play for quite some time, though it stops eventually. It even plays for a bit when exiting to the main menu.
Usually the waterfall sound bug happens when I've been around a waterfall for awhile. An interesting thing I've noticed is that the waterfall sound doesn't play at all if I only linger near the waterfall for a few seconds. I've also had the same lingering sound issue with lava on both console and mobile. The sounds do stop after a while though. Could be an issue with ambient sounds in general (At least for 1.2, don't know about 1.3).