In-game it looks as it should, but in the editor any 3D skybox receives the color from the Environment/Ambient global, thus looking wrong.

How it should look: https://imgur.com/a/H9tBuEz
How it looks in the editor: https://imgur.com/a/970EyfH
To reproduce:
- Add Environment/Ambient
- Add Poison/Skybox - Clockworks, Tier2

I'll take this opportunity also to remind the Light Sets look wrong in the editor. On the first day the crucible was released they actually looked fine! It's the update that came after that made them look completely white in the editor.

How it should look: https://imgur.com/a/bl8o2hS
How it looks in the editor: https://imgur.com/a/7Q84vJU
To reproduce:
- Add Poison/Light Set