After copying a Folder, I notice that none of the jobs within it can be launched (see "copied_folder_page.png" snapshot). Notice that we have a Test1 job, but there is no "Build Now" button to launch it.

As we can see in the snapshot "job_page.png", the project seems to be enabled (i.e. we still have a button to disable it), but, at the same time, the "Build Now" button in the left menu is gone.

The only workaround for this is disabling the job and enabling it again.