When trying out the API query to obtain OpenShift tags, and specifying the cluster_id or cluster_alias filter, it results in below error:

Error: response status is 400
{
  "cluster": [
    "Unsupported parameter or invalid value"
  ]
} 

Without the cluster filter, the API works fine.

API location:
https://console.redhat.com/docs/api/cost-management/v1#operations-Tags-getOpenShiftTagData