I've got a suggestion to help with improvements. These threads tend to get long. I'd start a log of defects near the front of the thread. As people find them, they can check there first instead of wading through an ever lengthening thread to see if someone else has already had the issue. Then as you prove them wrong or fixed, you can strike them out.
I've one to report. I've had toon circle back through, run through the portal again, and start from the beginning. He was ALMOST at triggering the rift boss, I killed about 10 spiders the profile missed and he showed up. It's possible it was a short dungeon, and the path he took didnt give him enough to complete. The problem with him circling back in that case, is he takes the exact same route the next time. He doesn't find any new areas or kill the extra mobs he missed.