I've got a fairly large scene with RC for pavement, kerb and the street/parking. The scene works fine up until I try to render. The light cache just won't build and the only thing I can think of is that the scene has become too big. I tried using an Xref to counter this but that doesn't seem to work. I've never had these problems with forest pack so I'm wondering if something might be wrong with the Railclone objects, causing this. I'm sure it's in the RC part of the scene because it renders just fine when I delete it or turn the Xref off.
Has anyone experienced the same issue and/or has any clue how to fix it? I can send the file but it's north or 200 MB so I'd have to We-transfer if someone would like to take a look.
I'm using 3ds Max 2018 with Vray Next update 1.1