If you eat whilst going through a nether portal, you are teleported to the coordinates that you would have gone to in the nether, but in the overworld instead. This has happened to two different players on our Realm so far.
It has only happened when people have been eating and I have yet to test what happens if you are already in the nether when you try it.
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duplicates
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[Mod] Umija5895M
migrated
We're tracking this issue as MCPE-54519, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as Fixed, you can check the Fix Version/s field in that ticket to learn more.