Plot hole: The scientist yells for Igor to capture the escaping Castaways, to which Igor responds "capture them yourself" in Ginger's voice. The scientist appears surprised to find out Igor is not Igor, but how can this be? He had to be the one to pull the lever to switch everyone's personalities and bodies around, so he should have already known.
Skipper Jonas Grumby: Ginger, I've got a problem... I've got a real problem... Now you're a girl, right?
Ginger Grant: Well, if you're not sure about that, you have got a problem.
Question: In this episode, as the Professor is put into a trance, in the background, there seems to be a radio or television transmission tower that can be seen over the roof of the hut. It's blurry, but doesn't seem to be a standard palm tree. Is this a mistake, or set error, or my imagination?