When Elphaba takes Fiyero to her hideout and starts singing "As Long as You're Mine", he unbuttons his shirt. In some shots the shirt is unbuttoned down to his chest, in others, it's closed to his neck.
Just before the start of "For Good", Elphaba has her hair tied in a ponytail; a few shots later, her hair is now loose and flows down the right side of her face.
During "Wonderful", the wizard's ascot pin seems to disappear but was actually used to pop the globe balloon and tossed away.
In the original Wicked: Première Partie (2024) and the sequel, Dorothy is seen to have captured the broom from the Wicked Witch of the West, and the broom's bristles are fully present and not burned, as they were towards the end of Le magicien d'Oz (1939).
During "The Girl in the Bubble" we constantly hear the sound of Glinda's heels whenever she walks. This appears to be Foley. After she climbed the stairs for the first time, Glinda slows down to look into her closet, yet her footsteps briefly continue walking on in the same tempo as before.