I’m running into the same issue with a 1.3 build installing on hardware. My assumption at this point is that something in the default config doesn’t get applied properly (maybe because of unsupported hardware?) and that cascades down to the initial login credential config not getting applied properly either.
Troubleshooting will probably involve finding the default config on the squashfs and figure out what’s causing the configuration error, fix it, and it should apply cleanly.
Reset your Yvos and at the logon menu.
Select Yvos Change Password (KVM COnsole)
At the prompt to Change your Admin Password (y or n) type y and enter
To change admin password (Yvos)? type user and hit enter (ignore any message that is displayed between use and r.
It will reboot and you should be login
Hope this help