Shader error in level

[Hamees4]

After coping buttons, materials and materials instances from “UIMaterialLab” to my project has made the shaders in my levels look different. They were fine before the migration but when I create a new project and download the same dungeon map it has the same shader error. In the project’s intermediate folder i get a folder named “shaderautogen” and some .bin files which may have been modified during the migration from UIMaterialLab. Deleting the “Intermediate”, “Saved” and “DerivedDataCache” folders and letting the engine recompile shaders has not fixed my issue. Can someone help?

Before the migration:

After the migration:

[BananableOffense]

The only obvious difference I’m seeing here is that in the after picture, the chandelier is casting shadows. If you don’t want it to, then select that light source and disable shadow casting. But that has nothing to do with shaders, so maybe I’m missing something?