I admit what I did was tricky but not an exploit in any way. I suspect it is an actual bug. I had my scoundrel scout alone (he can sneak better than the others) on an infiltration down the fiery road. I used his speed and shadow ability to get past the lava monster without too much problem. When I got to the portal for that area the portal activated Ok, however, there is evidently either a star or blood stone which flashed but did nothing else. The pyramid on the screen glowed but I could not activate it as my party was not together. I teleported back to my party and rejoined it then teleported to Homestead there was no new room. I can't believe someone has not run into this before as scouting is very much a valid tactic.
