I also have this bug with the night side being too bright. It definitely seems related to EVE. If I click Apply on any of the settings categories while in the Tracking Station (clouds, city lights, etc) causes those effects disappear entirely. Sometimes they return if I exit and re-enter the view, sometimes I have to restart the game entirely. I made no changes. A side effect of this is that the city lights texture will disappear, and then can sometimes be reapplied as the actual lights.
It looks to me like there is an issue initializing / refreshing the textures, but that's a guess.
Note I have verified all game files and it didn't help, so a solution doesn't lie that way.
Can you point us at the description/fix for this, if it is an issue with the stock game's handling of textures?
See images at https://imgur.com/a/lstpYIK