Deferred decals not visible in raytraced reflections

[JoeTheWiltshire]

Hi there, I’m having an issue where my decal actors are not showing up in Raytraced reflections, attached are the material render settings for the deferred decal, the settings for the decal actor and a screengrab of the issue.

You can see that in my reflective water material the decal fails to reflect, the reflection only shows the standard material on the mesh behind the decal, I’ve tried adjusting all settings I’ve found that could be related to no avail, and can’t find any other posts about this specifically.

This is in UE4.27.1 Any help or suggestions would be great, thanks!

The issue:

Deferred decal material settings:

Decal actor settings:

[JoeTheWiltshire]

Swapped the water material for a more simple mirror surface material just to make the issue more easily visible:

[Suthriel]

Decals are not supported by raytracing or pathtracing, so to lighten up your building, you will have to create a material, that does not rely on decals. Keep in mind, that there are other features too, that are not supported by raytracing and pathtracing

Path Tracer

[JoeTheWiltshire]

Aah thank you I missed that!

[Coolcat]

Facing the same problem. However, I found this is on the roadmap for Unreal 5.1
https://portal.productboard.com/epicgames/1-unreal-engine-public-roadmap/c/846-path-tracing-improvements