So, I spotted these animation errors a while back while I was watching the episode "Commander Lazer" from The Fungies!
Man, pupil-less Seth, Lil' Lemon and Pascal sure look creepy...

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At one point in episode 129, 'Fruit Parlor Crown' is misspelled as 'Fruit 𝘗𝘢𝘭𝘰𝘳 Crown' inside the café before it is corrected later.

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There's a framed photo of Usagi, Mamoru & Chibi-Usa in Usagi's room in episode 173. In 184, what is presumed to be the same photo is now different—notably, Chibi-Usa is removed and Usagi isn't wearing her old school uniform.

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Early on in episode 73, Rei is only wearing ear studs. After she undoes her transformation following the fight with Rubeus, Rei is still wearing her star earrings in one scene.

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Tell us if you see it too? Or is it magic?

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There is an error at the start of episode 57. As Ail & An exit, Mars is on left. In the very next moment, they've switched spots. This is because the shot of them facing Ail & An is originally from episode 48.

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In episode 35 of the '90s anime, Queen Serenity's hair is blonde. In all her other appearances, she has silver hair, though. It's unclear if her hair was always silver, or if it turned silver over time.

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In episode 36, youma Mitsuami destroyed the hair salon's entrance. Yet the door is restored in the epilogue when Usagi and the others check on Kariko Tokoyama after the battle.

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Chibi-Usa/Small Lady wears her princess gown in episode 159, but she doesn't have the crescent moon symbol on her forehead like she does in episodes 88 and 128. She also doesn't have the mark in episode 166.

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