Logged onto our server only to find a very weird effect. Everything's color seems washed-out, slightly transparent, and I can see tunnels and caverns underground. It sometimes stops when I enter a new chunk, but only for that chunk, and not every time.
The effect only persists in the area of and immediately around our main base. It does not occur elsewhere in the Overworld, nor does it occur in other dimensions or Ages.
Relaunched the game, the launcher, and restarted the server and my computer. Effect still there. Other players unable to log on until late tonight, so cannot say if only I am affected.
Anyone know what the hell is going on?
Update: Other player logged onto server with no visual effect.