When on a page and the scroll bar is on the right you cannot see the pencil icon(edit) on the task bar so you can edit task bar. You have to go to a page where it does not have the scroll bar to see the edit icon. This only happens using SLDS 2
Yes, see attached, this is using Chrome and the latest version. This is just viewing one record. As you can see in the screenshot I can only see part of the pencil icon and there is no scroll bar at the bottom.