When the Mutants are first seen outside the Gorn City Jail, Optikk is wearing his alternate outfit which he will receive in The Blacksmith of Crelus (1991). It changes to the correct outfit as soon as the Mutants start running.
In the final scene, after He-Man names Bimo a Galactic Guardian, Artilla is standing behind He-Man and is drawn smaller, but still moves his arm in front of He-Man. (animation layer mistake).