Oh fillet engine, why do you hate me? =)

 From:  Michael Gibson
3976.7 In reply to 3976.1 
Hi Chris, so once that little mangled ghost surface is removed, there is still a problem in the trimming boundary for the adjacent pieces, you can see there is an unusually large gap between the edges in the outer surface's trimming boundary here:

Those surfaces may need to be untrimmed and retrimmed to repair that, I'll take a look.

- Michael