The magically moving Mickey adds such flair at the end; I hope the fix is permanent too! Though did you hear anything indicating it was a broken lift? Mickey re-appears at the same spot as where he is during the Genie sequence (where he goes down brief and then comes back up), so I always assumed it was the same lift. That lift has been functioning fine in the past few months, so I had assumed it was a budget cut to remove magically moving Mickey.
It’a long been my understanding the two Mickey’s remain in costume for both performances, due to the flame retardants. This could be wrong or dated. Cutting the moving Mickey would make sense only if the performer suits up for another character for the finale.
The lift has definitely been broken. During the summer when it’s not completely dark, you could see the performer run offstage behind the pyro that was suppose to mask the appearance: and disappearance.