The release signature configmap file is invalid with no name defined

oc-mirror version 
WARNING: This version information is deprecated and will be replaced with the output from --short. Use --output=yaml|json to get the full version.
Client Version: version.Info{Major:"", Minor:"", GitVersion:"4.18.0-202410011141.p0.g227a9c4.assembly.stream.el9-227a9c4", GitCommit:"227a9c499b6fd94e189a71776c83057149ee06c2", GitTreeState:"clean", BuildDate:"2024-10-01T20:07:43Z", GoVersion:"go1.22.5 (Red Hat 1.22.5-1.module+el8.10.0+22070+9237f38b) X:strictfipsruntime", Compiler:"gc", Platform:"linux/amd64"}

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1) with isc :
cat /test/yinzhou/config.yaml 
kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v2alpha1
mirror:
  platform:
    channels:
    - name: stable-4.16
2) do mirror2disk + disk2mirror 
3) use the signature configmap  to create resource 

3) failed to create resource with error: 
oc create -f signature-configmap.json 
The ConfigMap "" is invalid: metadata.name: Required value: name or generateName is required

oc create -f signature-configmap.yaml 
The ConfigMap "" is invalid: metadata.name: Required value: name or generateName is required  

No error