The quests each finish when you got them the present, which should be done before starting the feast. After a fast check I think I forgot to have the quests be set to failed if they are still active when starting the feasts. I'll fix this.
If you send me your save file, for example via mail at Naughty-Netherpunch@web.de, I can fix the issue in your save file.
Chiyo is certain to get more scenes in the future, look forward to it. ;)