Found out a bug sighting most of my advancements missing

Resolved

Duplicate

When i opened my game all of my advancements are gone. The map That I hold was showing nothing.It was like I have to start from scratch.

Environment

Java version

Duplicate of MC-187701.

Reporter: migrated

Assignee: (Unassigned)

Created: 2021-03-08T12:30:45Z

Updated: 2026-09-07T15:37:48Z

Resolved: 2021-03-08T12:44:39Z

Confirmation Status: Unconfirmed

Affects Versions: 1.16.5

Retrieved 2026-10-11T07:12:00Z