The collection time of the Sugarplum Faerie is 8 hours.
I did get super quick flash screen on day 1 so there might have been one. You might be right - I'm on chapter 4 and they are not the side goal... the goals I get are only numbered and I assumed that 1 means day 1 etc. I might change them to what you said and then double check them as I open each chapter and confirm... thanks for posting!
So, we get 2 Undecorated Trees from the Adventure. They become Decorated in 10:Collections, and no others available in Market, except for Gems!!! I?m hoping another Adventure will give more Undecorated Trees, otherwise, this will be Another Unfinished Story. Even if I had enough Gems, I would NOT BUY more in the Market! The trees are Required to Build the Castle and enough SHOULD be Available for PURCHASE WITH COINS!!! COME ON S8! FIX THIS!!!!😡
I don't think you need to buy anymore. It just calls for being in the game more for collections. Have a look at what you need for the upgrades and the math. It's only day 3 so plenty of time to work through the event.
I looked at page one again and goal 5 has moved to goal 6 which makes sense. Recently Storm8 added the side quests to stop people from planning ahead and saving needed parts for the next chapter. That's why it's suggested you don't level up the building because you can no longer collect. With the side quest having you make chocolate turtles, for example, once you do requested amount, it's no longer craft-able.
The trees changing shouldn't make a difference as the decorated tree still drops raw walnuts as well as ornamental walnuts. Keep collecting. If after a few more tries they don't, can you post again or even better, go and post in the Bugs forum so that S8 can see there is a problem.