Hi,
Yesterday I've installed mastercomfig low to update my 2013 Chris config, and I've been encountering a visual error ever since.
I have some sort of 'light circle' around me, its especially noticeable on light-themed maps such as process. When I move around with my movement keys or even only my mouse, the light spreads on walls, props, etc..
Here are some pictures: https://imgur.com/a/EGVA4tE
The 'circle' is above my crosshair on the first picture (its more noticeable when you move), on the first and second screenshots you can see the issue very clearly on the wall that has 3 vents on it. For the record, I did not have that issue with my Chris config.
Things I've tried: using different lighting/effects/shadows/particles modules, manually changing fog commands, using different dxlevels (81 is what I use, I tried 95 & 91 and still had the issue).