Strange Lighting Anomaly

Hi all, I guess I’m not the first one who experiences this weird behaviour, but i couldn’t find a solution for it yet. I’m talking about the powder like white spots. Attached an image of a couch under a spotlight (2 spots on the wall lighting downwards).
What I’ve already tried:

  • increased light map - its 1024 now, doesn’t really make a difference, they are still on the couch
  • turned off the spot lights, its still there
  • moved the spotlights out of the flat so it doesn’t cover that area - white spots were still there
  • added an inside wall to the wall if it was light leaking somehow - nope
  • reflection capture in that part of the room doesn’t poke outside of the room - its not from the over-lit outside environment
  • couch UVs are fine, there is another couch to the left with the same material and setup and it doesn’t do anything like this
  • the spots dont react to lighting change - if I lower the intensity of the spot lights - but yeah as ive tried without them its definitely not the spot lights issue.

at this point I ran out of ideas, please help me :slight_smile: