I tried to solve this problem for a very long time, but I never managed to achieve a high-quality result. I don’t understand why this is happening! Under the reception desk I have a self-luminous material, but when I remove it, the picture does not get any better!
@kudivaydi , welcome to our Forum.
Just to make very sure if this still persists, are there otherwise no self-illuminating materials placed anywhere else? Please (temporarily) remove any just to make sure - I reckon that if you place lights inside the interior close to the plants that also resolves it? Last but not least, ensure that the ceiling itself is also not “too thin”, to avoid any potential light leaking too.