When selecting a slim skin in bedrock edition the textures glitch out and mirror. I tried this with a slim skin and a default skin but they both had this same texture glitch. I turned off my resource packs and reset the game but it didn't change the outcome. This happens to all skins uploaded.
Thank you for your report!
We're already tracking this issue at MCPE-50258, so I will resolve and link this ticket as a duplicate.
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