This is a clone of issue OCPBUGS-56698. The following is the description of the original issue:
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(Feel free to update this bug's summary to be more specific.)
Component Readiness has found a potential regression in the following test:

[sig-network][OCPFeatureGate:NetworkDiagnosticsConfig][Serial] Should function without any target pods [Suite:openshift/conformance/serial]

Extreme regression detected.
Fishers Exact probability of a regression: 100.00%.
Test pass rate dropped from 100.00% to 0.00%.

Sample (being evaluated) Release: 4.20
Start Time: 2025-05-19T00:00:00Z
End Time: 2025-05-26T12:00:00Z
Success Rate: 0.00%
Successes: 0
Failures: 8
Flakes: 0

Base (historical) Release: 4.17
Start Time: 2024-09-01T00:00:00Z
End Time: 2024-10-01T00:00:00Z
Success Rate: 100.00%
Successes: 30
Failures: 0
Flakes: 0

View the test details report for additional context.

Other tests impacted:

[sig-network][OCPFeatureGate:NetworkDiagnosticsConfig][Serial] Should remove all network diagnostics pods when disabled [Suite:openshift/conformance/serial]

[sig-network][OCPFeatureGate:NetworkDiagnosticsConfig][Serial] Should be enabled by default [Suite:openshift/conformance/serial]

[sig-network][OCPFeatureGate:NetworkDiagnosticsConfig][Serial] Should set the condition to false if there are no nodes able to host the source pods [Suite:openshift/conformance/serial]

These have been regressed for 7 days and are perma failing in every run.