userid: @Kilnerdyne
server: PC / EU
location: Halls of Fabrication, Vvardenfell

When: 3rd Boss, Archcustodian
Everytime?: Very inconsistent but it happens alot.
What happens: After clearing all small/large spiders and killing the Archcustodian all players in group are stuck in combat and unable to get through the next door. You run back to check "have we actually killed everything", you check every nook, every cranny, check under the rugs and get all khajiits to empty pockets but still no enemies to be found. 3 solutions to this are usually those that are stuck in combat relog, everybody dies quickly in one of the shock beams or blades; or it magically brings you out of combat after 2-3minutes of waiting.
Theories: The usual strategy here is to pull all of the small/large spiders together at one spot close to where the Archcustodian's first button is. Some spiders are getting lost on the way, either in the floor, in the wall, disappearing or resetting to somewhere not on the map (aka in the floor again).
What is meant to happen: After all small/large spiders are dead people should come out of combat. These spiders should not reset once agro'd. They are resetting by losing line of sight or something which should not occur.
Since when has this been happening: Since Morrowind launch.