soup

For two years I have done the Luau event, getting the best response from the governor, I even have his hat, I gave him many things at the iridium level, restarting the day to try each time because it didn't give me the achievement, I don't know what to do anymore, it's one of the last...

I am unsure if this is a bug or just something i am misunderstanding in the game. Is there any reason I am unable to add a gold star pumpkin to the Luau Soup? It is one I grew the previous Fall and had in a chest. I picked it up from the chest just before heading out to the Luau. Thanks.