I was experimenting with the Nodus client on 1.8.3 and tried out x-ray mode, whenever that is enabled the chunks auto refresh. When I turn it off, I have lighting issues in my single player world even with the vanilla launcher, as shown below (click to enlarge).
Areas that should not be lit at all are always bright.
I currently have no idea how to fix this and it is rather annoying having areas completely bright. I tried placing torches in areas and breaking them but that did not work out. I also tried doing F3 + auto refresh chunks and other debug tools.
Is there any way that I can fix this or am I stuck with this issue?