schwinner

Hi, i finished the dlc and looked at some walkthroughs if i did everything. My potion Quest is still bugged and i saw there are a lot of Tasks to find Artefacts. I can't start any task when i talk to Engari he wants me to talk to Humaire and thats all i can do. Do i have to find them without any Task to get the Quest? I mean that can't be real to backtrack everything. Savegame https://drive.google.com/open?id=1LOMB5CPInsHAQl0AzDSl_-F1ok_Sq1kC

I also did several fights with it equipped can't progress