@theluthier All lamps are visible in both the wievport and the render,i just switched to a diferent hdri to see if it worked. The result is the same, a much darker render with what i think has a hint of red. This is a mystery to even the wise! It must be a setting of some sort, this doesnt happend to any other file i have. One thing though, it seems to improve abit when using a sun as rimlight instead of an arealamp!
