Cloning Page / Block Layout is Not Cloned

Good afternoon all,

We are on version 3.06 professional.

We have 2 basic page layouts: A 'default' page with a left rail, and a secondary page with no rail. I am trying to create a new page with the secondary layout (no rails)

Under Website Content, I select a page that has the layout I want (no rails), and click 'Clone Page'.

The new page is generated, but it replaces uses the 'default' layout with the left rail.

How can I create or clone a page with a different block layout?

Thanks in advance,