Black Knights level range issues

[Xiddo]

Was running Fireball’s Night Ward arcs last night on 50+4. Inside instanced missions (where I’d been on the same map as the team before setting) I would say half of the mobs were 50+2. Seemed to be no correlation between certain types of toons, I.E. minion/ lt/ boss, so if there were two groups in a room they would be different levels.