I’m developing for mobile so this thing appears only on mobile preview.
Most of materials I use for the project are fully rough and they’re not affected with this… whatever it is. Only those materials which has some roughness. And what I noticed is that the only thing is different with those materials is that they are not affected by Skylight.
So, after I moved my project to UE5.5.1 one of materials looks incorrectly, and it does look as it should be right after I make any changes to material or just re-save it. But later, if I reload the level or exit the preview and run it again, it looks broken. Material looks fine in editor, the problem occurs when I press play and when I run it on the device.
Seems like an engine bug?