When you try to set database containment to NONE by using ALTER DATABASE SET CONTAINMENT statement in SQL Server 2019, then you may receive an Access violation. Additionally, a dump file is generated.
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 update 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: