Game randomly becoming Saturated

I’m making a game called Color Rush, a multiplayer game that allows you to pick a color and race to the beginning. I am working on the random generated path system but for some reason, mid - test run, the game’s lighting changes on the cilent.

Cilent:

Server:

Could anyone tell the problem and how to fix it?

It could be:

  • Fog
  • Plugin
  • Model in your game