Hello, This is regarding a Europa treasure activity and its interaction with Lost Sectors. I am calling this the treasure "relay", but it's the challenge where you have to interact with three consoles marked with pillars of light to get a data key to open a chest. If you don't open the chest once you have the status "Data Key (Short Term)" and instead go into a Lost Sector, the enemies will not recognize your presence. There are other weird behaviors, as well, like enemies' health refilling to max, disintegrated corpses respawning and exotic abilities not triggering (Dunemarchers, in this instance). This is for regular Lost Sectors, I assume that the treasure buff is removed when you're teleported to harder difficulty LS instances.