I’ve imported a small (but detailed) model of a cafe interior from 3DS max into UE4 via datasmith. It runs fine (if a little laggy), and I’m in the process of fixing lighting, reflections and shaders…
I saved it and closed it on thursday evening. Came in to work Friday morning to open it - it took 3 hours to open. Same again today 3 hours!
What is going on here?