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  1. Red Hat Workload Availability
  2. RHWA-264

Create NodeHealthCheck page errors Cannot read properties of undefined (reading 'h1')

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      Cause: Incompatibility of Patternfly 4 with OCP 4.19
      Fix: Upgraded to Patternfly 5
      Result: NHC plugin is compatible with >= 4.19
      Show
      Cause: Incompatibility of Patternfly 4 with OCP 4.19 Fix: Upgraded to Patternfly 5 Result: NHC plugin is compatible with >= 4.19
    • Moderate

      Description of problem:

      When you attempting to create a NodeHealthCheck using the webui, we experience an error:

Something wrong happened Cannot read properties of undefined (reading 'h1') 

This occurs on Chrome and firefox.

      Version-Release number of selected component (if applicable):

      OCP 4.19.4
CNV 4.19.1
node-healthcheck-operator.v0.9.0

      How reproducible:

      Navigate to Compute -> NodeHealthChecks -> Create NodeHealthCheck in the Web UI

The issue is also seen if you go to Installed Operators -> Node Health Check Operator -> "Create NodeHealthCheck" 

The customer states:

Sometimes the selection box for Form view vs YAML view will appear, and I can select YAML view. But returning to Form View brings back the "Something wrong happened" error. At other times I will not get the option to choose Form or YAML view, and only the error appears.

      Additional info:

      We have a customer who has seen this in a support case.  I was unable to replicate on a fresh install in the lab.

        1. image-2025-08-30-18-31-58-232.png
          349 kB
          Michael Habash
        2. image-2025-08-30-18-32-18-074.png
          440 kB
          Michael Habash
        3. image-2025-08-31-13-42-51-286.png
          313 kB
          Michael Habash
        4. image-2025-08-31-13-43-58-066.png
          236 kB
          Michael Habash

              brotman@redhat.com Bat-Zion Rotman
              shaselde@redhat.com Sean Haselden
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                Created:
                Updated:
                Resolved: