Some objects appear, others don't, completely random and still can't figure out why this is happening. Works fine on 2019.1. Also updated LWRP to latest available version. Edit: The only common thing is that they are objects imported from FBX. Speedtrees work and show up in the build. Standard 3D Unity meshes also work and show. Edit 2: But some other FBX work just fine.... can't really figure this out. the objects not showing up range from a single plane to a lot of geometry.