Sky and fog blinks with excess coloring

[yuqiwangcbcb]

Particularly in the end, the minimap and big maps' background all turned purple. Fogs turned purple too.
In the overworlds, sky blinks red/blue, more so in sunrise/sunset.
Have made sure this is gone without voxelmap. However, I couldn't identify if another mod caused voxel map to do so.
Restarting PC did not change anything.