I have noticed that when I create a new VM from a VM Template in the Content Libraries, i get a failed Customization Specification process. However when I create a VM from a Template I do not get this issue.
I did notice a difference when create VM from Library and Cloning from Template. From the "Cloning from Template" wizard (after selecting the customization profile) i do get a page where I am asked what the NETBIOS value should be, but I do not get this page when creating VM from Library. Any ideas?
For now, the work around I do is to create a VM from Library with applying Customization Profile, then after the VM is created I convert it to a Template.
Am I doing something wrong? or is this behavior a known issue?
what version/build of vCenter are You using? Customization deploing VM from template from Content Library is available from 6.5 version.
What kind of template are You using? Vmtx or OVF? There are some differences between full functionality of them still.