The same happens when revision/history pages for Flow boards are viewed.
Does not happen when Permalink is open.
- Go to mobile and click on the bell icon to open Notifications
- Click on any notification that will open a topic page
- The bell icon for Notifications is not displayed anymore - scroll down to the end of the topic page. The Norifictions desktop style will be displayed.
- Click to open Notifications - the flyout will be blank.