I started a project on UE4.2 but I haven’t upgraded it yet to recent versions of the engine because of some differences in the materials with each version. When I tested my project in 4.3, I noticed that after I build lighting again in the new version, all materials had less reflections, like if roughness value of all of them were higher. I have to lower the roughness to very low values to have similar results. I already posted about this issue here: [link text]
UE4.4 behave the same way for me. But now in 4.5 is even worse. Now I don’t even have to rebuild lighting to se everyithing with less reflections. I also noticed that in 4.5, the default Sky Sphere in the default blanck project has much darker clouds with the same values. So I have to increase Cloud Opacity to have similar results. Here you can see two screenshots about this sky issue. The first one is from 4.2.1 (and I think it looks the same even in 4.4), and the second screenshot is form 4.5:
So I wanted to know if all of these are expected behaviours and I should check all my shaders to ensure I have the result I want, or is there something wrong or something that I am not aware of.
Thanks for your attention.