The items added with add-ons that have more pixels than vanilla converts into big items, it happens with personalized and predetermined skins, too.
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[media]
[Mod] OcelotOnesie
Thank you for your report!
We're tracking this issue in MCPE-120618, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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