When I start my pack, Dynamic Surroundings 3.6.1.0 just crashes.
3.6.0.1 worked fine.

https://paste.ee/p/a0H7I

Thank you, worked! Bewitchment was the other cause.

DS 3.6.1.0 uses Mixin 0.8; DS 3.6.0.1 uses Mixin 0.7.11. To use 3.6.1.0 you need to makes sure all the other mods in your pack that uses Mixin are using 0.8. For example, Vanilla Fix uses Mixin and the version you have in your pack is not the latest (which supports 0.8).