I duplicated a quest in my ESP via TESVedit (maybe this was the "original sin" here...) but I dont know, I did it before without ever having a problem, even was the same quest that was copied.
But I have quests randomly not beeing "read" anymore by papyrus. The log is spammed with stuff like this:
[04/15/2022 - 02:19:03AM] WARNING: Property Alias_Enemy06 on script nade_sexquest_qf_scr attached to nade_SexQuest (EA005A52) cannot be initialized because the script no longer