Shader .... unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes

Development Rendering
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1

Hi,

I keep getting the above warning message about 8000 times whenever I cook the project, and I have been trying to find the cause for hours, but, to no avail, I still have no idea what or where the landscape thumbnail material is, or how would I add them to either AllowedShaderTypes or ExcludedShaderTypes.

The project compiles, builds, cooks, just fine, but just assume removing those warning is more important for this particular case.

Any idea how could I get rid of them? or at least what could be causing those warnings to pop up?

 LogInit: Display: Warning/Error Summary (Unique only)
 LogInit: Display: -----------------------------------
 LogInit: Display: LogLandscape: Warning: Shader FVelocityDS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
 LogInit: Display: LogLandscape: Warning: Shader FVelocityHS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
 LogInit: Display: LogLandscape: Warning: Shader TShadowDepthDSVertexShadowDepth_OnePassPointLightfalse unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
  LogInit: Display: LogLandscape: Warning: Shader TShadowDepthHSVertexShadowDepth_OnePassPointLightfalse unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
  LogInit: Display: LogLandscape: Warning: Shader TShadowDepthDSVertexShadowDepth_OutputDepthfalse unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
   LogInit: Display: LogLandscape: Warning: Shader TShadowDepthHSVertexShadowDepth_OutputDepthfalse unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
   LogInit: Display: LogLandscape: Warning: Shader TShadowDepthDSVertexShadowDepth_OutputDepthtrue unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TShadowDepthHSVertexShadowDepth_OutputDepthtrue unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TShadowDepthDSVertexShadowDepth_PerspectiveCorrectfalse unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
   LogInit: Display: LogLandscape: Warning: Shader TShadowDepthHSVertexShadowDepth_PerspectiveCorrectfalse unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TShadowDepthDSVertexShadowDepth_PerspectiveCorrecttrue unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TShadowDepthHSVertexShadowDepth_PerspectiveCorrecttrue unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader FHitProxyDS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader FHitProxyHS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityDSTLightMapPolicyHQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityHSTLightMapPolicyHQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityDSTLightMapPolicyLQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityHSTLightMapPolicyLQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityDSFDummyLightMapPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityHSFDummyLightMapPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityDSFNoLightMapPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TLightMapDensityHSFNoLightMapPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader FDepthOnlyDS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader FDepthOnlyHS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
   LogInit: Display: LogLandscape: Warning: Shader FDebugViewModeDS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader FDebugViewModeHS unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
   LogInit: Display: LogLandscape: Warning: Shader TBasePassDSTDistanceFieldShadowsAndLightMapPolicyHQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSTDistanceFieldShadowsAndLightMapPolicyHQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassDSTLightMapPolicyHQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSTLightMapPolicyHQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassDSTLightMapPolicyLQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSTLightMapPolicyLQ unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassDSFCachedPointIndirectLightingPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSFCachedPointIndirectLightingPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassDSFCachedVolumeIndirectLightingPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSFCachedVolumeIndirectLightingPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassDSFPrecomputedVolumetricLightmapLightingPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSFPrecomputedVolumetricLightmapLightingPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassDSFNoLightMapPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display: LogLandscape: Warning: Shader TBasePassHSFNoLightMapPolicy unknown by landscape thumbnail material, please add to either AllowedShaderTypes or ExcludedShaderTypes
    LogInit: Display:
    LogInit: Display: Success - 0 error(s), 7840 warning(s)
2

We have the same issue after updating to 4.18
its only 2500 Warnings in our case.

3

Same for us as well, after updating to 4.18, there are a lot of those warnings.

4

Same thing, 25k warnings in my case =)

5

We are seeing this as well on 4.18.1

6

Yes, still an issue in 4.18.1

7

Hey everyone,

I’m moving the thread to the Bug Reports section and assigning it out to one of our support staff for investigation. In the future, if you run into something that you believe may be a bug, please post it in the Bug Reports section so we can be sure that it gets proper attention.

Thanks

8

“Happy” to see that I’m not alone in this case…

9

We’re aware of this issue and we already have the bug logged as JIRA UE-53126.
You can track the report’s status as the issue is reviewed by our development staff. Please be aware that this issue may not be prioritized or fixed soon.

10

Thanks bstone, I’ve updated the JIRA report that this occurs in Windows projects as well as mobile.

11

Thank you for letting us know! I’d like to note that the tracked bug is related to launching on mobile devices but I observe the issue when working on a purely Win project. Just in case that helps to prioritize it better :slight_smile:

12

Awesome. Thank you once again.

13

I found a solution:
Update to 4.18.2 and then got to
%localappdata%\UnrealEngine\Common\DerivedDataCache
and delte everything in this folder.
Start the editor and it will be gone.

14

I am currently using UE4.27 and the issue is still not fixed. Anyone know how to fix this yet?

15

Saw it with UE 4.27.2 while trying Brushify acc. to “Brushify: Bootcamp - Procedural Grass Tool in UE4”. ProceduralFoliageVolume did not show anything. Deleteing all files in DDC cured all…