So reading on upcoming patches I came across this.... Atheon Next week's Hotfix is going to contain some fixes to the Atheon encounter. We've added "baby bumpers" to areas where players could knock Atheon out of the environment. Knocking a boss off a ledge is a bug. We will seek to address bugs like these as quickly as possible.    The encounter goal for Atheon is to act as a climax and the culmination of learning for a given Raid group. Part of that is making sure that each player in your group can perform every job as required. A change will take effect next week which fixes a bug with Atheon's target selection. When using its Timestream ability, Atheon will select 3 players at random, instead of choosing the three players furthest from it.