Yes, I've run into this problem too. It's really IPC only.

I think the problem here is that the prom traversing
code isn't getting it quite right and it's getting
confused by the fact that there's bwtwo there.

It ought to be fixed. It works headless fine on an SS2-
but the IPC is busted.

I may be able to fix this in a couple of weeks- I have
a nominally headless IPC where I need to fix this problem
too- I'm just totally swamped.... If you don't get to it
ping me in a couple weeks.