POE2-Act 4-Find Tavakai- Quest Bug - RESOLVED -

I have completed the quest and killed Tavakai BUT the Quest still says:
"Find Tavakai"
I tried to relogg, switch Characters, respawn at last Checkpoint...
Nothing worked!
What can i do?
I really need some help here.

EDIT: After more then 30 minutes i restarted and had to complete the quest again.
This time it worked. Seems i killed Tavakai too close to the wall, so that Sin couldnt do stuff.