I’ve made a building in blender and when its imported, even as much seperate parts as i can, there is still a barrier in certain parts where for example, a boolean modifier was used.
It should be a some sort of runtime error or so. If a runtime error occures, then some part of the model you’ve made won’t load up. I think it might be because of the fact that you’ve might open up some other program when rendering out your model.