http://te4.org/characters/160/tome/ea5a ... b949db80bd
To be succinct:
Apparently, dying in the Fearscape to a Summoned Monster (Shade of Player) while also gaining a level from killing said Summoned Monster with a ranged attack while unlocking an achievement for gaining said level while unlocking a class for killing said monster (Doomed) all at the exact same time causes T-Engine to throw up it's arms and say "that's it, I'm done," causing the game to catastrophically fail, corrupting the save file.
(Frankly, I'm surprised such an obvious bug made it through beta testing!



I had not unlocked Doomed as of yet, I was fighting the boss entirely too early with it going very poorly. So in my desperation I cast Fearscape, hoping to gain an advantage before he killed me.
While in the Fearscape he summoned my Shade, so I turned and unloaded on the shade. My Shade was actually dying very fast. My last shot fired off, just as I apparently died to the boss, kicking me out of the Fearscape. (Edit: There is a small chance that I just ended up getting punted out of the Fearscape at this time naturally.)
My last shot apparently killed the Shade.
Which Unlocked the Doomed class.
Which conflicted with me dying and being sent to the Afterlife.
Which conflicted even more with me gaining a level -- which healed me to full. While dead.
Which was level 30, which should have popped up an achievement.
The entire screen went blank, I was not allowed to save and exit (the game ignored that menu option) but I could continue to talk in game. I was able to select Save Game, but it froze at 89%. I could see both the "you're in the afterlife" icon as well as my current buffs, although my spell timers were all reset to their max -- i.e., the game thought I was dead.
Upon forcing the game to close and reopening it, the game now does not load that character's save file past 89%, instead launching me back to the main menu.
I have the save game uploaded here:
http://dl.dropbox.com/u/63119417/save%20-%20Copy.rar