Can't get preview mode to work in CNC mode

I set stock size multiple times and can’t get preview to work.

Youtube videos are all older software so the interface is different for the software and not very helpful.

Maybe I’m interpreting something on a menu wrong but not sure as I have tried get a preview multiple times and checked settings multiple times.

can you drop a link to your workspace (files → export workspace) on dropbox/google drive. or email to me [ sa at grid dot space ]