Continuity mistake: When Iceman steps onto the containment field platform, Professor X moves over right next to him, hovering over the platform himself. When Professor X activates the containment field to trap Iceman in place, Professor X is suddenly away from the platform.
Continuity mistake: Professor X's usual hoverchair was destroyed by the Dark Phoenix in the previous episode, so the Shi'ar gave him a new one to use on their starship. However, when Professor X is lamenting over the X-Men's imminent defeat against the Shi'ar Imperial Guard, he is back in his original hoverchair. Towards the end of the episode, he is back in the Shi'ar hoverchair.