The "Cluster settings" page added a "Save changes" button recently, and various sections in "Managing users and user resources" need to be updated to take this save button into account, as changes are no longer saved automatically.

These sections are:
1.2. Enabling usage data collection
1.3. Disabling usage data collection
9. Configuring the default PVC size for your cluster
10. Restoring the default PVC size for your cluster