After upgrading to 5.1 I’m facing issues with lighting on both niagara systems as well as my MetaHumans hair, basically if I’m looking at an object while it’s receiving direct light (or from the side), everything is fine. As soon as I look at this object from behind, it just turns black.
Example pictures (first looking from the side, second looking from behind):
Any help would be appreciated, I so far wasn’t able to fix this issue in any way. Thanks!