Skelemancer's minions teleport

[Nicator]

I've been playing a realm HC skelemancer these last weeks. He's currently 90 and doing ok, even running away from pkers. And I noticed something strange:

At times, mostly in the middle of a combat with monsters inside the screen, all minions return to the necro's position just like when crossing a portal or using a waypoint. This happens very rarely and only when playing alone, so I haven't figured out what action or scenario causes it .

I've been searching here and at the AB for someone else reporting this, without sucess. It's not that I care very much from having then coming back home from time to time, but that I want to how to make them do that when I want to ;)