I have the crash logs, though I'm not sure where to send them. A few happened when I tried to pick up an item (Numpad Enter following G), and I'm not sure, but I think they might have all been uncommon items -- one of them was a leather hood with a stat buff. At least one happened when I tried to descend a staircase into an unexplored level, and I can't recall the rest of them, but I don't think any happened while I was just walking around. A few bluescreens as well but I'm pretty sure those are due to a faulty wifi adapter, unrelated to your game. EDIT: Oh -- and the game's frozen a couple times. Music continued playing but couldn't input anything, and ended up having to End Task, so no crash logs there.
I'm using the 64-bit version in Windows 10, incidentally.
You're probably right about the levels being the same, but a lot of data is lost about which levels have been cleared of enemies, which parts of them you've seen, etc. -- it leads to a bug where, when ascending to a previously explored level, you arrive on the "up" staircase instead of the "down" one, since the game thinks you're entering for the first time. So effectively it gives you a Shining Orb for free.