After .9c went live I have decided to continue testing Lightless Arbor and Soulfire Bastion dungeons as they have been unable to complete for me since .9.0 online has launched. Check me original thread here.
I had noticed it the last time but forgot to mention it. When I get to Titan’s Rest or Soul Furnace they spawn as a different level than the tier I chose to run. This must be the core of the problem. I.E. I choose T1 soulfire bastion but soul furnace keeps spawning at lvl 90 and therefore doesn’t have the correct quest state to spawn a room transition. I assume there is a correct level one out there somewhere on the server with no one in it. Since the patch I have been able to complete a single Soulfire Bastion at T1 but my attempts at T2(3 or 4 so far) ended in once again spawning a lvl 90 Soul furnace and failing.
I was also able to complete a T2 Lightless Arbor. I have since attempted a T3 but this time Titan’s rest spawned at lvl 22 which is the level for T1 and once again no room transition spawned rendering it incompletable.
Hopefully this was helpful. Let me know if I need to do anything else to test it.