When my game updated from 1.14.1 to 1.14.20 I experienced a rollback of about an hour on my realm.
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[Mod] Umija5895M
MCPE-62397
Realm rollback when updated from 1.14.1 to 1.14.20
Resolved
Duplicate
0
[Mod] Umija5895M
[Mod] Umija5895M
(Unassigned)
Unconfirmed
Xbox
1.14.20 Hotfix
Retrieved
I found out that another player on the realm had caused / experienced a crash, so this is almost certainly a duplicate of MCPE-12347 and can be resolved as such.