HA on Proxmox issue with IPv6

I’m running Home Assistant (HA) on Proxmox and I’m having trouble with an Aqara Matter device that relies on IPv6. From the Proxmox shell, I’m able to successfully run ping6 google.com, so IPv6 seems to be working at the host level.

However, when I access the HA terminal and try ping6 google.com, it fails with a message saying the destination is unreachable. IPv6 is set to “Automatic” in HA’s network settings.

Any advice or troubleshooting tips would be greatly appreciated!