Continuity mistake: When Bustopher grabs the lobster, Mr. Mistoffelees is holding his hat with his right hand. A shot later, he is in a different position and he holds the hat with his left hand.
Continuity mistake: When Bustopher rolls inside the trashcan, Munkustrap's hat is upside down. A shot later, it has turned 180ยบ.
Other mistake: Whenever a cat puts a hat on, there are no cuts for the ears to pop through. Instead, the ears simply swap from being on the cat to being on the hat between frames. Sometimes, when the cat's head is a bit too high, the ears on the hat are sometimes slightly misplaced.
Answer: The issue wasn't about her hand looking human but, as you mentioned, that she was wearing her own ring, which was digitally removed in the revised version.
raywest ★