ok so it seems that deleting the bugged quests cause it to lock trader offers that should unlock from quests now it just show "this item will be available with the quest completion" on flea market even when the quest is completed is there a way to edit a save so that it just unlock those trader offers?
To my knowledge, no. But I'm not a coder or modder. I suggest (in my very limited knowledge of SPT coding) a fresh save, to make sure the bug doesn't hide and then persist later.