title: AWS Cloudformation RDS EnablePerformanceInsights is not working
body: <p>I want to create RDS instance trough Clouformation. Below the excerpt from the cloudformation file.</p>
  <pre><code>  MasterDB:
      Type: AWS::RDS::DBInstance
      Properties:
        DBName: !Ref DBName
        DBInstanceIdentifier: !Ref DBName
        BackupRetentionPeriod: !Ref DBBackupRetentionPeriod
        AllocatedStorage: !Ref DBAllocatedStorage
        DBInstanceClass: &quot;db.t3.medium&quot;
        DBSubnetGroupName: !Ref DBSubnetGroup
        Engine: MySQL
        AvailabilityZone: !Ref DBAvailabilityZone
        EngineVersion: &quot;5.7.30&quot;
        MasterUsername: !Sub &quot;{{resolve:ssm:/DB/USER:1}}&quot;
        MasterUserPassword: !Sub &quot;{{resolve:ssm-secure:/DB/PASSWORD:1}}&quot;
        MultiAZ: !Ref MultiAZ
        EnablePerformanceInsights: 'true'
        DeletionProtection: 'true'
        DBParameterGroupName: !Ref RDSDBParameterGroup
  </code></pre>
  <p>The RDS is created without a problem, but I've noticed that Performance Insights and Deletion protection is not enabled on the new instance.</p>
  <p>Could you advise why these options don't work?</p>