kube-bench-adapter job fails with warning re propagationPolicy

[funkypenguin]

When testing the helm chart in an unsecured cluster (see #4), I get a successful kube-bench job run, but kube-bench-adapter fails with :

root@cn1:~# k logs -n kube-bench test4-l2zf6
Found (1) pods
pod (kube-bench-wwrc5) - "Pending"
Found (1) pods
pod (kube-bench-wwrc5) - "Running"
Found (1) pods
pod (kube-bench-wwrc5) - "Running"
Found (1) pods
pod (kube-bench-wwrc5) - "Succeeded"
W0330 00:44:29.927886       1 warnings.go:70] child pods are preserved by default when jobs are deleted; set propagationPolicy=Background to remove them or set propagationPolicy=Orphan to suppress this warning
failed to run job of kube-bench: invalid character 'W' looking for beginning of value
(failed reverse-i-search)`ge tjobs': k ^Ct pods -n kube-bench
root@cn1:~#

I'm on Kubernetes 1.25 - is there anything to be done to remove the warning above, and (hopefully) successfully complete the job?

Thanks!