It's not the pane that's the problem it's your family.
Oh, Snap!
But seriously, folks, that's a Hosted family.
The Preview is showing the family and the host.
If you either make the host smaller, or turn off it's Visibility in the View, you'll see more of the family
Anonymous
11-06-201701:10 PM
11-06-201701:10 PM
It's not my family, it's the standard family that came with Revit 2017. Either way, I would like to see what I'm going to utilise in my projects before I have to repeat the process again in case I've chosen the wrong file.