I upgraded a project I had from UE 4.26 to UE 5 and then converted my meshes to Nanite, but there were certain models that didn’t work with Nanite so I didn’t convert them. But I instantly noticed something wasn’t right with the lightning in the scene anymore. After some testing and troubleshooting I found that the issue is that if you have both Nanite enabled meshes and non-Nanite enabled meshes it causes the light to not render on objects properly.
I created an empty scene with 3 objects as an example. In the first image all 3 objects have Nanite enabled and the lighting works as intended. However, once you disable Nanite on a mesh, the light no longer renders properly on the meshes that have Nanite enabled. Is it not possible to have both in a scene? Do you have to have everything Nanite or nothing at all?