I tried multi boxing a Hard LDoN in the Sepulcher of the Damned. It did not go well.
All but one of the Chars I tried to use for the adventure respawned in THF zone.
The last one is currently caught in a death cycle. For some reason one of my chars started respawning in the LDoN zone. The bad thing is the respawn spot in The Sepulcher of the Damned is inside the first populated room. I spawn, and 3 seconds latter I get "Loading, Please Wait...", to repeat it all again.