I've been working on a map for a few weeks now and noticed this odd red tint that shows up only in a few spots on the map. I've gone through many hours trying to figure out the issue covering worldspawn settings, light grid, reflection probes, and .vision file. Nothing has worked, does anyone know what might be causing the issue. It is the only thing holding be back from releasing the map. The image I'm including shows one of the areas affected. Please any help is appreciated, I'm beating my head against the wall trying to figure this issue out.

I've ran into that issue before. I just erased the texture, put it back(the same texture). recompiled and it fixed the issue.

I wish it was that easy. I've erased the trouble brushes and reapplied the texture to again. After recompiling it had the same issue on a few brushes. Some brushes did get fixed with reapplying the texture though.

You could also try selecting the problem texture.
Hit "S" and click LMAP, then click done, recompile. that helps sometimes also.

I tried the suggestion of adjusting the lmap, but it didn't work. Tried something new, instead of a brush I created a turned the issue face into terrain. From there I adjusted the lmap and it seems to have fixed that one brush. It does work for that one, but feels like a band aid instead of a real fix. Any suggestions?

Using the first two procedures fixed my issues in my SP map. Witch is taking me forever to finish...ungh lol.So I have no other suggestions. But hey, if its working its working.
If it looks good in game. All is well.

Maybe you are right, if it works it works. Thanks for the help.