Foliage effect stops when at the edge of deep rainforest

Hello!

I don't know if it's a bug or if it's intentional but when I'm at the edge of the deep rainforest, the music and the foliage effect surrounding the screen stop, and start again when I get a bit more inside of the rainforest. I love to run on the side of the biomes so, it's pretty annoying to have the music start over every second.

I love don't starve tho, thanks for your work.