VCF 9.x vSAN witness appliance is deployed with evaluation license
VCF 9.0
VMware vSAN 9.x
Host license is managed by vCenter and witness host appliance is deployed with evaluation license from date of deployment.
Issue resolved in VCF 9.0.1
Upgrade data node to 90P01, and deploy 90P01 witness appliance.
Workaround:
Deploy vsan witness appliance 8.x and upgrade appliance to 9.x since vsan ova comes with embedded license.