Other mistake: When Sportacus jumps out of his blimp, his crystal is missing.
The Purple Panther: Part 1 - S3-E6
Continuity mistake: During the 'Break it down!' part of 'The World Goes Round', there is usually no microphone in front of Stephanie. However, in the shots where Stingy shows up, there is now a microphone. Up until the 'Break it down!', there was also a microphone, showing that it actually disappeared from most of the shots during it. The guitar also disappears from all 'Break it down!' shots.
Continuity mistake: In the cake song, Stingy puts in chocolate but never picks up the bowl. A few shots later, he is now holding the bowl.
Sportacus on the Move! - S2-E4
Continuity mistake: When Sportacus gets out of bed, his duvet cover is on the floor at the end of his bed, but when he goes to make his bed moments later, the duvet cover is now on the bed.
The Purple Panther: Part 1 - S3-E6
Character mistake: In the song 'The World Goes Round', Stingy sings about dinosaur bones from the Stone Age (the second verse). The dinosaurs were wiped out about 65 million years ago while the Stone Age started 2.5 million years ago, an obvious time gap.
Audio problem: At the start of the cake song, the line "I'll pile on the candy" was changed to "I'll pile on the sweets" for the UK. However, Ziggy still moves his lips to the word 'candy' when he was saying 'sweets'.