End skybox is weird

[alfrh02]

The skybox in the End looks like its not working:

I'm running the most recent shader with Distant Horizons on Arch Linux. I've tested with an isolated modpack so I know there can't be any other mods interfering. This happens on any of the shader's presets, but I'm currently using RTX.

Iris 1.6.17, Indium 1.0.30, Sodium 0.5.8

Anyway fantastic shader, thanks for all the effort