When you query the Dynamic Management Views (DMV) sys.dm_db_index_operational_stats in SQL Server 2017 or 2019, you may notice that the object_id returned by the DMV for the swapped partitions is incorrect after you switch a partition from one table to another table.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This issue is fixed in the following cumulative updates for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Learn about the terminology that Microsoft uses to describe software updates.