why can't I get beta downloads for my enrolled iMac
I have a new 2017 27 inch iMac with 10.13.3 High Sierra loaded. I also have an older iMac with High Sierra 10.13.4 public beta 3. When I bought my new iMac I tried to migrate data from a time capsule back up of my older iMac. I was unsuccessful due to the differences in the OS of the new iMac and the backup. I enrolled the new iMac in the public beta program but have never been presented the option to update to 10.13.4 (always get no updates available). Why would my new iMac not receive the beta update?
iMac, macOS High Sierra (10.13.3)