Hi i have added lights to my map , all of them are default colour ( white ) , but for somereason my map has a red tint to it in most areas. I previously had red lights but decided to change them but i have searched and no red lights remain . I have added reflectionprobes to all the rooms too and still have a red tint. Anyone know why this is happening? Thanks

do your brushes overlap often? Sometimes they're not recognized by the reflectionprobes if they do.

Do you mean the brushmodels or the walls ? , I go to smallest grid and try to make everything i add line up ( although sometimes a mistake is made ) , i have considered deleting all the lights and starting over but i do not think think that will work. I have a few walls with blood decals on them is that possibly a reflection of the red from there? 

Both, but it sounds like that's not causing your problems(:

The decals shouldn't cause such a massive reflection.
Can you post a screenshot where we can see your error?

Hey sry slow reply I fixed it by pressing shift+L and selecting light grid . Select the light press S for surface editor and hit lmap. I did this on the reflection probes too the red is almost all gone. Seemed also turning the intensity to 2 helped a lot

Addition : the red tint was also a result of the lights having a small radius . It seems I only get red in areas not covered correctly by light .