When the magic of the alicorns and Equestria is being restored by the Staff of Sacanas, the spot where the Storm King fell is shown but the pieces of his shattered stone-self are missing. The animators had most likely forgotten to add them in before fully completing the scene. See more
'Scuse me! Dragon on the move! Important princess documents comin' through!
Female Pony 1
Whoa! Everypony from Manehattan to Saddle Arabia is here!
I know, filly! We almost couldn't book a stable!
Princess Twilight must have her hooves full with this giant Festival!
Female Pony 2
Are you kidding? She's smart and organized and cool under pressure! There's nothing she can't handle!
Ommmmm... Ohhhhhhh mmmmy goodness, I can't handle this! Ooh! Nothing is working! I just have to get it together! Just go in there! And ...