When using a Large Chest I put items in the bottom three rows and when i save and exit the world the items in the bottom three rows of the large chest disappear, and it happens with all of the Large chests in my world and only with large chests.
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Thank you for your report!
We're actually already tracking this issue at MCPE-102970, so I will resolve and link this ticket 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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