When you start an Always On secondary database that has a database snapshot, you encounter non-yielding dump files in Microsoft SQL Server 2019.
To work around the problem, you can start SQL Server by using trace flag (TF) 3972, which disables concurrent Page Free Space (PFS) updates feature.
Cumulative update information
This problem is fixed in the following cumulative update for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology that Microsoft uses to describe software updates.