I tried to complete the level 5 weaver's guild quest by turning in 2 HQ versions and one normal version of the required item, hempen breeches.
The game let me get all the way to the end where I choose the reward option before telling me I couldn't complete the quest. However the text was in Japanese:
条件を満たしていないためクエストをコンプリートできません。
(You can't complete the quest because you do not meet the requirements.)