When I open my project, I get the following yellow text warning:
LogMaterial: Missing cached shader map for material BaseColor, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/BaseColor.BaseColor for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Uniform references updated for custom material expression Custom.
LogMaterial: Missing cached shader map for material LightingModel, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/LightingModel.LightingModel for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material MaterialAO, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/MaterialAO.MaterialAO for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material Metallic, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/Metallic.Metallic for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material Opacity, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/Opacity.Opacity for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material Roughness, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/Roughness.Roughness for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material Specular, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/Specular.Specular for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material SubsurfaceColor, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/SubsurfaceColor.SubsurfaceColor for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
LogMaterial: Missing cached shader map for material WorldNormal, compiling.
LogMaterial:Warning: Failed to compile Material /Engine/BufferVisualization/WorldNormal.WorldNormal for platform PCD3D_SM5, Default Material will be used in game.
LogMaterial:Warning: (Node SceneTexture) GBuffer scene textures not available with forward shading.
Is this something I should be concerned about?