How to debug the Scanner VMs can differ per provider these are documented below.
On AWS VMClarity is configured to create the Scanner VMs with the same key-pair that the VMClarity server has. The Scanner VMs run in a private network, however the VMClarity Server can be used as a bastion/jump host to reach them via SSH.
ssh -i <key-pair private key> -J ubuntu@<vmclarity server public IP> ubuntu@<scanner VM private IP address>
Once SSH access has been established, the status of the VM's start up configuration can be debugged by checking the cloud-init logs:
sudo journalctl -u cloud-final
And the vmclarity-scanner service logs:
sudo journalctl -u vmclarity-scanner