During the lvl 45 Arc the corpse that I was supposed to kill was bugged and didn't let me speak to it to get the scroll. This meant that I had to Alt f4 and relog. (However for some reason I didn't have to get the scroll anymore and the mission continued as it should?).
Completed the Oson questline and now onto Denkai, but then realizing I need the red scrollsto start the Denkai questline so I was confused, went to the corspe but this time it was possible to kill it somehow? In the end I didn't get 1 scroll but two for some reason and Denkai continues to not give me the quest to progress the questline.