Emissive material suddenly messed up

Get Help Tech Support
1

D5 Render Version: 3.1.1

Graphics Card: RTX 470 laptop

Driver Version: 617.14

Issue Description: Emissive light looking messy and appears to be pulsating on live view. Final render looks the same as the screenshot. This was not problem on other project so im unsure whats causing it

Screenshots/Videos Description:
i

Screenshot 2026-10-02 141031
Screenshot 2026-10-02 1410311720×1185 2.87 MB

Steps to Reproduce (optional):
Unsure whats causing it. On other project the emissive does not behave this way.

2

hi,
please check below comments :

  1. is that object which is used for emissive intersecting with ceiling surface
  2. that emissive object is on even distance around cove light space or is it far inside from bottom ceiling outer edge. ( bcoz its not seen in front angle )
  3. can u share scene, so i can check on my end.
    if u found this helpful please mark as solution.
    thanks