Fatal crash: Loading project, "Failed to load special material"

Development Programming & Scripting
5

Found by trial error:

This two line in the DefaultEngine.ini was causing the crash:

     PreviewShadowsIndicatorMaterialName=/Engine/EditorMaterials/PreviewShadowIndicatorMaterial.PreviewShadowIndicatorMaterial
PreviewShadowsIndicatorMaterialName=None

Deleting the second one which set that parameter to None fixed the crash and now the project open fine and everthing works.

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