A Single Piece Was Lost - S1-E10
Visible crew/equipment: When the Gruenaks attack the Scientist a puppeteer is visible to the right of one of the Gruenaks, just before it grabs the bird cage and throws it onto the Scientist's head. (00:28:18)
Factual error: At the end when Skeksis enters the crystal chamber, in the overhead shot you can see 22 arcane symbols around the crystal when there should only be 18, one for each exiled skeksis. (00:45:53)
End. Begin. All the Same. - S1-E1
Continuity mistake: When Rian and Mira are on the Spy glass, he understands she just invited him to Dreamfast. When she answers "Yes! I mean...if you wanted to?" his hair is suddenly all the way behind the sword's handle, when it wasn't in the shot before. (00:09:45)
The First Thing I Remember Is Fire - S1-E4
Continuity mistake: During the fight scene the hunter's mask is broken and there is a large point made of this. However, mid way through the sequence when he is squaring up to our hero his mask is miraculously damage free. (00:44:01)