Master user lost it's permissions unexpectedly on SQL Server (rds instance)

Question

SQL Server master user lost his permissions unexpectedly. When I try to access my database tables, I get the following error on SSMS:

The SELECT permissi

Answer 1

AWS RDS SQL Server grant dbower to master user

Incase if you accidentally revoked the permission or post restore database is not accessible by master user in SQL Server RDS then only option is to you reset the password of master user from console.

You might be thinking password resent?? why :)

I faced this issue and when I reset the password from console it automatically granted the permission to this database.