When working with intrusions, such as changing depths and angles, the object dissappears and I'm back to a previous/earlier stage and all my work after that point has dissappeared. It is as if I've moved back several steps in history. This is a very frequent bug.
Chis, for what it's worth and not sure if this make sense but the last couple days I've been working on a 3D project configured at 1920x1080 16 bit 300 ppi and have not had a single crash. Previously, I've been working at 8 bit, 72 ppi. All of the objects were intrusions. I was also surprised how fast it was able to render shadows and reflections with these settings.