NetBooting Mac Pro (Late 2013) from Mac mini server 10.9.2 (13C1021)

New Contributor II

Anyone able to host a NetBoot image of OS 10.9.2 (13C1021), made on a Mac Pro late 2013, from a NetBoot server pre-2013? I created the .nbi file and can see it on my Mac mini (mid 2011) using in the list of available images but no computers, including the computer used to create the .nbi, can see it as an option when NetBooting.

There are no exclusions in on any of the 3 .nbi's hosted and all computers can see the other 2 images.