Forge version: 36.1.4
Twilight Forest version: 4.0.412
Link to latest log: https://pastebin.com/V2zPkBwy
Dynamic Surroundings version: 4.0.4.1

Steps to reproduce:

1. Create a new world with Twilight Forest and an ambience mod such as Dynamic Surroundings installed
2. Make a portal to the twilight forest and enter
3. Listen to the ambience and you will find that it is almost non existent save for a few cave sounds.

What I expected to happen:
The ambience added by Dynamic Surroundings would work correctly like it does in the overworld.

What happened instead:
Dynamic Surroundings seems to think I'm in a cave and plays cave sounds instead of forest sounds or surface ambience. According to the dev of Dynamic Surroundings it could be due to the sea level in the twilight forest being the same as the Overworld which causes ambience mods to think that I'm underground instead of on the surface.

I have already reported this issue on their github which can be found here: OreCruncher/DynamicSurroundings2#14