Missing metrics in maas observability stack

I am following this documentation how to monitor maas https://maas.io/docs/how-to-monitor-maas.
I saw some dashboard available in the maas performance repo https://git.launchpad.net/~maas-committers/maas/+git/maas-performance/tree/grafana/dashboards but most of them use metrics not available. According the metric reference https://maas.io/docs/metrics-reference I should see maas_node, maas_machines and other metrics that are not available for me in prometheus

Edit:
Adding more information about maas installation
snap list maas
Name Version Rev Tracking Publisher Notes
maas 3.2.8-12050-g.fc2c8d020 28584 3.2/stable canonical✓ -

 dpkg --list postgresql
postgresql 14+238 all object-relational SQL database (supported version)

Edit:
maas latest/edge channel seems also affected by this