Night sky rotation is inconsistent and differs greatly from Morrowind.exe

In this save, OpenMW's night sky is rotated roughly 80 degrees clockwise relative to Morrowind.exe. See this overlayed comparison:

image

Morrowind.exe:

Morrowind_2026-09-21_15.58.53.877

OpenMW:

Screenshot_2026-09-21_155903

Steps to Reproduce

  1. Pick a point in time in Morrowind.exe.
  2. Import the save to OpenMW and compare the sky rotation.

System Information

  • OpenMW Version: ce8a5211
  • Operating System & Version: Windows 11
  • GPU: NVIDIA
  • Morrowind Version: GOG
  • Language: English
  • Addons: All official plugins

Mods

  • Are you using mods? No
  • Are you using any shader mods? No
  • Does it happen in a clean vanilla install? Untested
Edited by Aussiemon