When you have a module (such asstored procedure) that has a query that uses table variables in SQLServer 2019, you might not retrieve column dependencies for that module with sys.dm_sql_referenced_entities.
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:
To work around the issue, you can use compatibility level of 140.