When you add a skybox to the place then remove it with another skybox in the Lighting object, it does not fallback correctly, and instead the default skybox displays.
Repro steps:
Add 2 new Sky objects to the scene
Delete one of the Sky objects
Observe how the sky reverts to the default sky that appears when there’s no Sky objects, and not the other one remaining in the Lighting service
Expected behavior
The sky fallbacks to the remaining custom skybox in Lighting
I appreciate you sharing this on my behalf! Funnily enough, I haven’t received a response from Bug Support yet. words can’t express how much happier I am!
I just turned the bug fix for updating sky on. It should be available now and rolled out to all players with version 633 and above over the next hour or so.