Does this crash happen 100% of the time for you? I tried 30 or so times, and only managed to get it to crash once, somewhere inside NetImmerse. At that point I was running fullscreen, with the 0018 release dll. I also tried a locally compiled copy in both windowed and fullscreen modes, plus a few tries without OBSE. Since the crash happened on the second time I guessed it would keep happening, so I didn't look in to it in detail when I had the chance, unfortunately.
edit: the crash occurred right as the body disappeared, fwiw
Yes, it happens 100% of the time when running OBSE 0018. It always happens at exactly the same point, when the body finishes rising from the ground and is enveloped in purple smoke, just as it disappears. The crash never occurs when running OBSE 0017 or vanilla Oblivion executable.
The "MannimarcoRevisited.esp" (the esp with chargen bug fix) has a script error - script: aaMannimarcoFixScript too much "endif"
Don't know if this is the reason for the ctd.
I believe that it's a different script that fires when you take the robe off of Mannimarco's body, specifically aMiltKOWRobesAbilityScript.