ESBC running on Azure not accepting password

Hi all,

I am just installed a ESBC on Azure and I have run into the issue of it not accepting the default passwords on initial boot up. The image was created from a VHD called nnSCZ910p7-img-vm_vhd

On boot up connecting to serial from Azure gives me the below where my only option is to enter a password. I was expecting this to be the default of acme but it's not accepted. I also tried packet but it's also not accepted.

password secure mode is enabled

Admin Security is disabled

Password: 

So I am wondering if the VHD for some reason does not use the standard passwords? I can also SSH to the SBC and get prompted to enter user name and password but the results are the same with the default passwords I normally use. I have been working from the document "Deploying Oracle SBC in Microsoft Azure Public Cloud" and that gives the standard passwords.