I think I may have stumbled across a bug in Candy Crush Saga 1027. This has occurred on a Windows 10 PC and also on my Android mobile.
To finish the level, you need 3 hazelnuts and 2 cherries. However, when the game starts, there are only 2 hazelnuts and 2 cherries. If you look at the screenshot (attached) you can see it looks like a 3rd hazelnut should be available at the bottom right. When all the chocolate is cleared it doesn't appear.