UE recompiles shaders on every frame of rendering

Development Rendering
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LogShaderCompilers: Warning: Failed to compile Material /Engine/Transient.Footage CaptureData Material for platform PCD3D_SM6, Default Material will be used in game.
  /Engine/Private/SlateElementPixelShader.usf:168:58: error: no member named 'GetFrontSubstrateHeader' in 'FMaterialPixelParameters'
            FSubstratePixelHeader SubstratePixelHeader = Parameters.GetFrontSubstrateHeader();
                                                         ~~~~~~~~~~ ^
  /Engine/Private/SlateElementPixelShader.usf:169:50: error: no member named 'SubstrateTree' in 'FSubstratePixelHeader'
            FSubstrateBSDF UnlitBSDF = SubstratePixelHeader.SubstrateTree.BSDFs[0];

So yeah, basically what the title says. Usually this problem can be resolved by fixing a “bad” material but this time the issue is related to Substrate. Once I turn it off in the project settings, all the scenes will render fine.

It will even occur in a completely empty map which is super strange.

Any tips? I couldn’t find anything on Discord, Reddit or UE forums.

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Considering that substrate is still in Beta, I’m not sure there’s much you can do except tell the substrate devs and ask for a fix. Even though substrate ostensibly has parity with the old path now, I’m still finding significant problems.

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Update: To anyone still struggling with this issue, try disabling the Metahuman plugin. This issue is known to EPIC and will be investigated.