So I i've finished this quest before months ago, but I've been taking a break for a long time. Now, just before my long leave I apparently started the quest again and had about 10 mystic weaves collected. Now, yesterday I wanted to finish this quest so it would be removed from the active quests list.
Now, after collecting 15 weaves I returned to Katsumi, but the following conversation takes place:
It also still says: "Return to Katsumi and give her the weaves you found".
Is there a trick to finish the quest? Cause I hate loose ends like these.