OMV 5.3.9 virtual machine
ESXi on HPE Gen10 microserver
It also stalls during the IPv6 configuration. I enabled DHCPv6 on my router (pfsense) and the install continued. I guess Debian10 does not support Router Announcements and gets "stuck on stupid" during this step during the installation step. Once it completed installation, I rebooted my VM for the DHCP MAC reservation to take effect. Once it grabbed the v4 address that was the only address it retained.