Map problem in the demon plane

[ghostbuster]

I had a problem in the demon plane (sent by the the demonic orb).
I cleared the plane, then found Draedor, and he phased somewhere.
The problem is that the generated map is not connex, and he jumped to an unreachable part.
The walls are undiggable and I just had to phase door randomly, until I landed on a place where I could reach him.
It took me almost one hour, just to reach him, and it was rather ... tedious!

I think the generated maps should be always fully connex, or the lava walls should be made diggable to avoid this problem.