Cloner - Length of Time It Should Take to Clone a Website

How long should it take to clone a website and propagate fully?

I keep getting the please wait screen even an hour after I click the Clone Button.

It creates a site listing in the dropdown for the cloned site but the site does not propagate when I attempt to go to stage.mysite.com.

Is there something that I should be doing with my hosting company/FTP to aid in this process?

Any thoughts would be helpful!