I was unable to migrate my old Windows vCenter 6.7 (after months of vmware support help). I stood up a new VCSA 8.0 thinking I could upgrade the hosts direct to 8.0, but realized I had to upgrade the hosts to 7.0 first. I had all of the proper 8.0 licenses which I downgraded to 7.0, the 7.0 licenses (vsphere, vsan) loaded ok into vCenter 8.0 and the vSphere 7.0 licenses applied ok to the hosts. The vSAN 7 license is not applying.