Random-sort views are getting generated for each instance in a panel

This might be by design, but I have a use case where it doesn't work.

I need several random nodes in a panel.
I figured I'd create a view that shows 10 random nodes, create a view pane for it that exposes the offset setting to the pane settings, and then add the view pane several times to the panel page, giving an offset of 0, 1, 2, etc for each time I add the view pane.
This way, I figured I'd avoid getting duplicate nodes because I'd be picking from a list generated a single time.

However, I do sometimes get duplicate nodes.
So I'm guessing that each instance of the view pane is generating its own version of the view. With the small pool of nodes in my test site, I'm getting the same nodes appearing.