NPC's and party members disappear in Eureka

[Xeon]

Probably has to do with the massive amounts of mobs in eurika.

[Claviusnex]

Probably has to do with the massive amounts of mobs in eurika.

It is. If you get a full instance, add in the spawning mobs and dragged mobs it is easy to end up with a high object count.

I understand the need to limit this to a degree. The problem is a player's current target should never be removed. Likewise if a player is in a party the party members should never be removed. The same should go for the boss even if not targeted. I would also say any NPC's within striking distance of the player should remain visible or when hidden unable to strike the player. The real priority should be to hide any environmental objects/non-dangerous NPC's that use graphics resources, players outside of a party and last NPC's outside of target range. In all likelihood just hiding other players would resolve this problem as it isn't an issue when groups are distributed across an instance or the instance is under capacity.