I ran into this in my conversion, too:

>ANR9999D imutil.c(6663): ThreadId<67> Failure deleting
> member 0 585368742 for group 1637 3 - encountered
> repeatedly in loop.

It took an audit (fix=yes detail=yes) to correct. If you
try to run expire invent, you will notice that it has a
tough time ending. There are other things that I ran into
during the audit that I will write up and submit this week.

Gretchen Thiele
Princeton University