Old finite world works fine in Bedrock 1.16.220 but when opened in 1.17 the world boundaries are all shifted by 128 (eyeball estimate).
Linked issues
is duplicated by 9
MCPE-130494
started 600 coordinates away in an old world and I can't return after update
Resolved
MCPE-133635
1.17 Bug That Breaks Chunks In 'Old' Worlds on Pocket/Bedrock Edition
Resolved
MCPE-134200
5/8 of Minecraft PE world GONE with new update
Resolved
MCPE-134533
Part of world cut off
Resolved
MCPE-135156
OLD WORLD truncated
Resolved
Attachments
Comments 15
Some ‘old’ worlds are affected by this bug, others are not, however the bug seems to be more common in older worlds already generated.
I just discovered if you make the old world infinite even after the bug has effected it, the world generates like it used too, obviously it is now infinite though
Affects 1.18.0
I know they said they would be discontinuing old worlds, but it'd be nice if they made old worlds be how they're supposed to be instead of slightly misplaced for the people who still wish for their old worlds to stay the same and with the original borders the worlds used to have.
On 1.18.12 the removed chunks came back but the world is now infinite which cannot be changed. I don’t really like that but at least I now have my world back.
Just happened to my world ive been playing for a really long time, even backups from before create same issue
Thank you for your report!
However, this issue has been closed as Won't Fix.
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Potentially linked to MCPE-181249, which causes worlds from pre-0.9.0 versions to crash the game.
This has just happened to me as well. Updated my iOS app to version 1.17 yesterday, loaded my old world and the boundaries have shifted, now 3/4 of my world is invisible. Everything was fine before the update.