Case # 2:

ACCESS: Permissions migration known issues
AuthorFullName__c
Annat Fine
articleNumber
000006036
ft:sourceType
Salesforce
FirstPublishedDate
2024-02-22T11:37:30Z
lastModifiedDate
2024-02-22
VersionNumber
8

If you are a large customer and your migration failed since it took a long time.
Action Item: Wait until the migration is complete and restart the entire system.