When a referenced filed is added to the list layout , duplicate records with the same Number and sys_id on the list are visible.DescriptionWhen a reference type filed is added to the list layout of a table, the records are rendered with duplicate Numbers and the same sys_id.Release or EnvironmentAllCauseThe most possible root cause would be a faulty ACL with a script on the same table which is affected.ResolutionFind the faulted ACL and deactivate/Delete it to resolve the issue.