I opened up a case and this was Broadcom's response: Thank you for your email. I did check internally as for as we know that we are not supporting this product for now. Kindly reach out to your Account Manager for any further queries on this. ...
Have you made sure the VMs are not using/talking to any cpu hypervisor extensions like Intel VT. This might have been setup for nesting hypervisors for instance. Check the VM settings to make sure it is not dependant on the wrong tech.