the hireling 'graphic aspect' stops to move
if a hirelings enters a SECOND dungeon instance, the 'graphic aspect' of the hireling will standing still at the entrance.
The hireling seems to follow you 'invisible' and to do all what he is suspected to do.
Just summon a hireling in wilderness area (e.g. Korthos island) and enter a dungeon or run the depths chain.
Encountered with gold seal lvl 4 hirelings 'Burak Dazhbog' and 'Tesztra'. Both were summoned and both seem to be frozen at the entrance, but followed 'invisible'.
The 'call hireling' command on the hireling toolbar will teleport them to you, where they will be standing frozen again .
(bug reported)
Furthermore: how can i dismiss a hireling with the new UI?
btw: the korthos quest 'Heyton's rest' got a nice graphic update!