Mesh Decal path tracing problem (unreal engine 5)

[sangeron]

I create mesh with decal material and it work fine in lit mode,but when i turn on path tracing all this mesh work incorrect. unreal engine 5.1 Decal actor work fine,but i have 100+ decals .How can i turn my meshes to decal actors ? Or how fix this problem for my meshes?

[RyanPocock]

Is it related to this post too?

Focal Distance post process setting affects mesh decal colour & ignores normals 5.2

Set the Focal Distance in the camera post processing settings to anything other than “0” and all mesh decals in the scene will render at a darker colour. The following video shows the decal material applied to planes, not a decal projector. Projected decals still work fine, but mesh decals do not. I’ve already narrowed it down to the focal distance by adding some debug keys to set it to 0 or 100 for example. That is the cause of the decals changing colour for me. This was also not …