seems that its to far away caue I can make it work if i manually go more near to it. But i tried almost all settings between 3-15(follower distance) nothing seems to work. not walking up for the quest.
sometimes the leader walks past and one of the "slaves" try to pickup the quest but continue running after the leader.
EDIT: just realised for looting it works fine. It does not try to catch up to the leader right away, but runs to the lootable mob and then follows again. But for quests it wont do it :/.
EDIT2: also it seems to be totally useless, once the leader takes a flight master. Gets totally confused and just walks on 1 point
For now i will just quest seperate on all accounts to 15 then run dungeonbuddy with this guide:
https://www.thebuddyforum.com/honorbuddy-forum/167236-guide-dungeonbuddy-2-characters-party.html .