I am importing textures from substance and having issues! the geometry looks fine before I apply the texture maps but with the textures sections of walls become transparent, I thought it was an issue with the opacity so re exported texture maps from substance without opacity and the issue is still there, I am very stuck so any ideas of things I could try would be super helpful!
Looks like a sort issue. The interior walls are rendered after the building mesh. Check the blend mode of the material in unreal. As a rule of thumb it’s best to separate translucent objects from the rest of the mesh. Translucent object are rendered differently in unreal than opaque objects.
There is a setting you can manually sort translucent objects. Called something like translucency bias in the mesh properties. You can play around with that as well.
But glass should really be a seperate material or material id.
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Thanks that is helpful! I was reading more and wondering if separating the mesh might be the best fix sounds like it is. now I know for the future.