Visible crew/equipment: While Rygel watches over John's body, Rygel performs his own version of the Hynerian Ceremony of Passage to declare John dead so as to claim John's possessions, and when he pulls at John's boots, the puppeteer's arm/elbow becomes visible behind Rygel.
Farscape (1999)
1 visible crew/equipment mistake in That Old Black Magic - chronological order
Starring: Ben Browder, Claudia Black, Anthony Simcoe, Lani John Tupu
Relativity - S3-E10
Visible crew/equipment: When Stark and Aeryn are back aboard Talyn with Xhalax, who is tied up, when Stark says, "As far as I can tell, Talyn's systems are almost back to normal," we can see the puppeteer's face (wearing a weird black mask) and hands under Rygel's hoverchair.
More quotes from Farscape
...Different Destinations - S3-E5
Trivia: While they're waiting for the Venek Horde to attack again, when John is chained to the statue, Harvey/Scorpius is playing the harmonica with his feet up on John's lap. Notice that both soles of Harvey's red boots have the name "Andy" written on them. In "Toy Story" Woody's boot has "Andy" written on its sole, and here in John's mind it's to signify John's ownership of the neural clone.
More questions & answers from Farscape
Chosen answer: It's never explained. John mentions a theory that his less technologically developed craft simply interferes with the wormhole less than the "superior" Vipers, but they never make a concrete determination on that point. But we also have to take into account the fact that Moya traverses wormholes with no ill effect as well.
Garlonuss ★