Hi there

From the note I understand when you open a dashboard it takes you to the QuickSight default home page, not the dashboard view.

Please note QuickSight is a default page when you want to open dashboard from there you will see available dashboards, choose Dashboards at left. Choose any dashboard on the page you want to open it.

I hope this helps.

Reference:

https://docs.aws.amazon.com/quicksight/latest/user/using-quicksight-ui-start.html