KIAM not displaying all metadata metrics

[antikhv]

Hey! I have a weird problem. In all of our clusters, when I try to view the available metrics from a KIAM pod, I cannot see any of these metadata metrics

kiam_metadata_handler_latency_seconds - Bucketed histogram of handler timings. Tagged by handler
kiam_metadata_credential_fetch_errors_total - Number of errors fetching the credentials for a pod
kiam_metadata_credential_encode_errors_total - Number of errors encoding credentials for a pod
kiam_metadata_find_role_errors_total - Number of errors finding the role for a pod
kiam_metadata_empty_role_total - Number of empty roles returned
kiam_metadata_success_total - Number of successful responses from a handler
kiam_metadata_responses_total - Responses from mocked out metadata handlers

The other metrics are visible but these are missing. We are using v4.2, a customised helm chart forked from the one present in this repo. The debug logs do not show anything unfortunately.

Has anyone seen this kind of problem before? Any suggestions would be great, thanks!