Plot hole: 5-10 "Princess Trouble": The catapult King Jean-Claude accidentally triggers smashes the siege tower on which Calla and Marie are fighting over Sunni. But since Jean-Claude's catapults are all aimed at the walls of Dunwynn, how come it smashes the siege engines on its own side? Neither catapult nor tower were moved before the misfire occurs.
The Gummi Bears (1985)
1 plot hole in show generally - chronological order
Starring: June Foray, Lorenzo Music, Noelle North, Katie Leigh
A Gummi By Any Other Name - S1-E9
Continuity mistake: During most of this episode, Princess Calla wears ragged peasant's clothing. But in the instant where she uses the Changing Hat to transform into Igthorn, she wears her usual princess dress.