In Teela's Quest (1983), Queen Marlena's spaceship is called the 'Valiant', while in 'The Rainbow Warrior' the ship is called 'The Rainbow Warrior'.
When Skeletor orders Trap Jaw and Beat Man to use the Basher and Collector, Trap Jaw's mechanical arm is on the wrong side.
When Teela argues with Man-At-Arms after the jousting match, the tassel on her breastplate is white in one shot instead of the usual gold.