Continuity mistake: The 4 Space Rangers (Carlos, TJ, Cassie, Ashley) morph on the overhanging gangway, then jump off to the ground below. We see them hit the ground, and in the very next shot, they're right next to the Galaxy Rangers, and Andross, who are on the other side of the courtyard. There wasn't enough time for them to move that distance.
Continuity mistake: At the Start of the Lost Galaxy season the planet Mirinoi seems to be located within the multi-coloured lost galaxy, and the ENTIRE planet is seen turning into stone. In the season finale the planet now appears to be in the black space of our universe, and only small pockets of the planet appear to be encased in stone. The planet also suddenly has a moon which it didn't before.