I don’t think it is incorrect material settings or lighting in my scene. After experimenting a bit, I discovered that it only happens when I import a CC4 character to UE5.3 with the plugin and choose ‘HQ Shader’ in the Auto setup prompt. If I choose ‘Standard Shader’, there is no issue. Remember, I am talking about the preview screen. Usually, you don’t adjust too much there. Also remember that it does not do it in UE5.2 or earlier. Either there is a default setting in UE5.3 that wasn’t default in earlier versions, or the plugin has a ‘HQ Shader’ bug.