When Evil Lyn returns to Skeletor's throne room, for a split second the background plate of his throne is visible without the council table, revealing an unfinished chair and brush strokes.
Skeletor, Evil-Lyn and Kobra Khan are standing outside of Eternos looking toward the Royal Palace. The next shot is a reverse, but now part of the royal city is behind them instead of in front of them.
Skeletor mispronounces Kobra Khan's name as 'Kobla Khan'.