Send image to many machines

I haven't been using this software long, but managed to create a master image, a template for this image and roll the image out to 20 machines.  The problem is that I am trying to do the same thing with another batch of machines (identical hardware spec) using the same image/template etc. In the Console I can see all the client machines and I can select them in Manual Deployment. But when I click finish all but one of the machines goes from the screen and the image only goes out to this remaining pc. I'm using everything from the first successful run, with all the settings the same. Can you please provide some help?

My version is Snap Deploy 3292.