Board Thread:General Discussion/@comment-2601:192:4700:D2FD:75A5:414B:C18A:B85F-20171231202158/@comment-31939477-20180101024938

I think it skips the quest item if during the quest someone gifts you the item or you get it randomly from visiting friends or from a chest. If you already have the item and the quest begins it makes you win it again, even if you already have several. Definitely frustrating. Hope this info helps! :)