In the web console, attempting to list CRs like Certificates or StorageCluster Custom Resources while the project filter is set to "All Projects" results in a "404: Page Not Found" error. The resources load correctly if a specific namespace is selected. This appears to be a regression as the behavior was not present in version 4.20.z. The CLI (oc get <resource> -A) functions correctly for the same user.

    4.21.0

  100% consistent on affected version.

    1.Log into the Web Console on version 4.21.0. and install cert-manager, then create "Certificate" CR.
    2. In the project dropdown/selector at the top, select "All Projects".
    3. Navigate to the Home> search > under "Resources" select "certificate"
    4. Observe the main content area(404: Page Not Found).  

    5. But when you change Project to exact project in which you created the CR. It will show created "Certificate" Resource.   

The UI displays a "404: Page Not Found" error message instead of the aggregated list of resources.

The UI should list all instances of the selected CRD across all namespaces when project selected as "All Projects", matching the output of the CLI command:
oc get certificates --all-namespaces or oc get storagecluster -A

This issue specifically affects the global view. Switching back to a specific namespace immediately resolves the 404 and displays the resources.