It's a very cool game, especially the graphics!
Though It's a bit complicated to surf around the many options and features (shop, equipping, stats, etc..), and I think the stock market is probably adding more confusion than being fun to have..
I felt a bit lost on first approaching the equipping section, it took me a couple of stages before realizing how to switch slot from the top and then equip something.
the thing I don't like more is that you can't jump.. I feel handicapped just walking around (at the beginning you also walk soooo slow) in the middle of a gun fight.. in general is barely impossible to avoid the bullets, so you just stay there and take them all aimin carefully for an head shot, and you do better than trying to move around to distract the enemies, who then are less easy to hit on the head cause they move.
I've experienced the bug as well.
you have to play for a few levels (think was 4th), then you end a level and after the stats screen, you click on equipment or any other section and it move the main wheel without loading anything on the selected panel. and if you reload the game and select continue, the bug it's still there.
the most suspicious clue in my case was that when it crashed, I had looted a ring (the strength one) which I had already previously looted and equipped, so maybe there is some recurring variable which cause an infinite loop?
hope this helped you to fix it.
Cool game though!