It seems the new patch (1.3+?) has some skybox issues.

[Romulator]

If you know what the format is for making Skyboxes (If I recall, Left, right, top, bottom, front, back)

1. Swap left and back.
2. Rotate Top 90 degrees clockwise.

Install a 'new' Amnesia in a different folder, update that to 1.3 and stuff around in that one.

Temporary solution till its fixed.

The cubemaps \ skyboxes are used over and over in a LOOOT of story's.

I honestly beg to differ about this. Can't say "only recently have outdoor maps been made", but rather "A skybox is for an outside map". Most maps are indoors, and if they do have a Skybox, are just a color considering the limited resources and knowlege of making one.