I’ve been working on the Apple issue pretty much around the clock, and that includes a trip to my local Apple Retail Store to pick up a new Macbook Pro 13 inch. The old trusty Mac Mini that I used up to now is so slow I can’t stand it any more.
Anyway, I think I found the cause of the crashes. Yes, I do know why it crashes, but I don’t know how to fix it yet… I’ll be on it tomorrow, need to catch some sleep :-)
In the meantime, please continue to send the reports. They have been extremely useful. I am especially interested whether switching “Singlethreaded terrain update” in the compatibility settings cures the crash.