Haven't found another post on this topic, so I thought I post it.
It has happened twice to me, that while fighting the boss I get regularly warped to him/her!
Both times, this happened, I soloed gray cave team missions (2 person catch), one in Clon****, the other in 4 Holes. All went fine until the boss room.
During the first incident I got even stuck in the !ceiling! of the boss room without any chance to escape - luckily I dropped down after a few minutes (with the boss) so I could escape.
The second time I even got warped from the floor below/above the boss room back to her feet!!!
Both times the following scheme:
I went up and finished the bystander (one or two approaches) and started to concentrate on the boss (Engi with pet here). After one or two minutes of fight I suddenly get warped directly to the location of the boss. This does not change the combat behaviour (if I am attacked or not), but I prefer to stand close to the lift, for reasons that might be obvious. It looks a little bit like a timer/counter that is increasing, and after a certain time, some 'warp' command is initiated. Extremly annyoing when you zoned down/up at low HP to heal yourself up and still have the attack on you and get warped back to the boss room ... .
Only happened when I am alone, so far.
Somebody else?
So long,
Max(imilian)