Yesterday I had to run Buried Insights 4 almost full times before it worked, and that is a really long one with a lot of content that can’t be skipped. I will try and outline what went wrong and what I think finally went right. If I am right, you should be able to reproduce it fairly easily.
This is my 4th character to go through this story step and I had a couple of achievements left, so I decided to do them at the same time. After killing the final set of chak outside of the lab stage, I went to kill all of the defensive items. In the process I stumbled over the defective golem and got its page, plus the one underwater. At that point I didn’t know the specifics for that achievement. During that time, Taimi had continued on through the passageway on her own. When I had gotten the achievement Cleaning House, I quickly caught up to her and helped kill the final ballistic cannon and the golem. She was stuck at that point, just before the lab waiting for my character to say something, but wouldn’t move. I realized it was bugged fairly quickly, so I cut my losses and relogged the character to try again.
The next time through went a bit quicker, since I didn’t have to kill all the defensive items. When we got to the control room, I grabbed the last page I needed for the New Horizons achievement still having the first two in inventory. I then ran through the rest of the story, right up to the final piece of dialogue. However, when I got to the final room, I turned on the exit portal for the New Horizons achievement before all of the final dialogue was spoken. Just when I should have gotten the quest reward, I got a message that I had been disconnected from the server. To say the least, I was not happy.
So, I started again. This time I already had all 3 pieces of paper for New Horizons in my inventory, so I just played straight through to the end. Again I turned on the console for the New Horizons exit before the final bit finished. Again just before the quest reward at the exact same place, I was disconnected from the server. I was beginning to get pretty fed up.
I tried again. Before I started I removed all three pages from my inventory. During the story, when Taimi heads up for the turret near the lab corridor but before the defensive systems turn on, I quickly picked up the page from the defective golem and the one underwater. I then caught up with her and continued into the lab where I grabbed the last one. I then played through to the end, but this time, I waited until I got the quest reward before I went to the exit console. I then put in the code, and went through the portal getting the New Horizons achievement.
My suspicion is (although I changed two conditions here – getting the pages all fresh in the same episode and at what point I entered the code in the console) if the code has been entered into the console prior to the quest reward, something in the code fails causing the disconnect. Whether this is client or server side I couldn’t say.
One other point, at no time did I ever see a little gold medallion for the New Horizons achievement. I have no idea if it is supposed to have one or not.
So a fairly long and intensive debugging session for your code yesterday evening, but I suspect I have narrowed in on the culprit. Assuming you can skip through the content much faster than I could in your test rig, you should be able to reproduce this one fairly easily.
