Hi @Jamal NUMAN ,
SSMS 18.7.1 is the latest version of SSMS, we suggest you using it.
SQL server 2019 RTM has been released for a long time, please uninstall the SQL Server 2019 CTP 2.2 (Community Technology Preview 2.2)( 15.0.1200.24), install SQL server 2019 RTM and apply CU8 for SQL 2019 as others mentioned.
Download SQL server 2019 RTM.
Cumulative Update 8 for SQL Server 2019
You can follow the steps from this document to uninstall SQL 2019 CTP2.2.
Uninstall an Existing Instance of SQL Server (Setup)
Best regards,
Cathy
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