In the Mission Messenger - Dismantle the Conductor's Vex 1) Disappearing Artifact/device, I entered and there was one relocator device on the upper right ledge, I thought this is how it is suppose to be. Using the Void canon/blaster and shooting the device did allow me to be teleported to the cranium. The second time shooting the device on the upper right ledge was totally misaligned with the intended receiving device. It took me about an hour and looking at a video of the encounter to realize that there are two relocating devices another on the left ledge. Meaning that I had to restart this encounter for the map to be correct and progress. I doubt I shot it off the wall. 2) Check Point or Check Mate I am at the final boss the Archon Priest (Confront the Prime Archon Levaszk) yes I died thanks to Matter-Spark jump challenge. The game restarts at the fight with the Archon Priest. However if I abandoned the encounter for some reason the check point is pushed back to Destroying Field Generators. I made a video about the Vex encounter and acknowledged as some sort of instability in the game. Having to do additional Matter-Spark transformations and decommission the generators on the ship again because of the Check Point being reassigned I believe is an issue. Let the Check point be the actual fight or encounter with the Archon. Excessive thumb, finger movements are aggravating to me. Matter-Spark to be me is a costly learning experience. Above all I am happy with the game and it now requires me adopt, understand the armor and weapon concept of tiers. I played on a Play station platform. Is the Archon check point a bug in the game?