I have the same issue. I can recreate it easily. I have a fresh install of MAAS 2.9 running and can see the Machines page great. I add an LXD server and the machines page shows the error "Error: An unexpected error has occurred, please try refreshing your browser window."
Nothing too special about the LXD servers. Just Ubuntu built to setup an LXD cluster.
I have the same issue. I can recreate it easily. I have a fresh install of MAAS 2.9 running and can see the Machines page great. I add an LXD server and the machines page shows the error "Error: An unexpected error has occurred, please try refreshing your browser window."
Nothing too special about the LXD servers. Just Ubuntu built to setup an LXD cluster.