Beyond the Shining Sea: Part One - S8-E5
Continuity mistake: The video played on the mobile where Tiana is shown leaving on the boat shows her wave with her right arm. In the previous scene she waved from the boat with her left arm. (00:03:26 - 00:07:52)
Answer: There's probably no particular reason. Sets and props on long-running TV shows often change as needed and for various reasons throughout a series run.
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