DHCPv6 not functioning on Oracle Cloud

Hi, I am using AlmaLinux on Oracle Cloud and I’m unable to obtain an IPv6 address via DHCPv6 using the official Marketplace Partner Image. Even after performing dnf upgrade after provisioning and rebooting, no IPv6 address comes up.

I have brought up an instance from a Rocky Linux image whereby DHCPv6 is functional from first boot and an IPv6 address is immediately available.

I went through various troubleshooting steps with Oracle Support with no success, ultimately they said they cannot assist further and that I must seek support from the AlmaLinux community.

Any help appreciated.