This has happened on two different projects: entering topo points, same as always, & try to save (Green Check Mark) out of edit mode & Revit simply vaporizes from the screen. A little error msg flashes by but nothing else, no warnings, no opportunity to save a recovery file either. I've taken to be very limited in the amount of elevation points I place before saving out - it seems to not mind as much if I only do a few feet of entries (relative Zero, +2, -2) then save. Open back up, add a few more feet, save again. Very tedious.
Anyone else experience similar? FWIW all of my past topo issues have usually been driven by large areas & memory consumption. So when I built this box I added what I thought was a whopping 16 Gb, and now it bites me in the ass. Go figure.