Mythic Dragons Portal group teleportation bug?

[Djriff]

So last night my guild was doing mythic Dragons and I went into the first portal like normal and we started killing the add. About 10 seconds before the add died I was teleported out into the middle of the room. Is this a mechanic I'm missing or just a bug? I can post a video of it later.

[Plasmaxyz]

That's something that happens when a boss is targeting you for an ability and it cant get LoS so it teleports you in. Don't know what specifically would do that on dragons though.

[narendal94]

It's when the dragon comes down, just tell you tank to taunt it faster.

[Djriff]

Why would it target me when I have no threat on it and literally run straight to portal on pull? Seems buggy to me.