Oc-mirror hit error when mirror operator for diskToMirror mode: errArray copying image 1/4 from manifest list: reading config blob

Oc-mirror hit error when mirror operator for diskToMirror mode: errArray copying image 1/4 from manifest list: reading config blob sha256:fde9cd04ec3f7a272adbcbda875ee0e79f958ef6da21ca03f23618a6917d20b0: fetching blob: received unexpected HTTP status: 502 Bad Gateway

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:"4.16.0-202403070215.p0.gc4f8295.assembly.stream.el9-c4f8295", GitCommit:"c4f829512107f7d0f52a057cd429de2030b9b3b3", GitTreeState:"clean", BuildDate:"2024-03-07T03:46:24Z", GoVersion:"go1.21.7 (Red Hat 1.21.7-1.el9) X:strictfipsruntime", Compiler:"gc", Platform:"linux/amd64"}

sometimes (not 100% reproduced)

1) cat config-op-1.yaml 
kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2
mirror:
  operators:
  - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.12
    packages:
    - name: multicluster-engine
      channels:
      - name: stable-2.1
      - name: stable-2.2
      - name: stable-2.3
      - name: stable-2.4
      - name: stable-2.5

4) the mirror failed: 
oc-mirror --config config-op-1.yaml file://out --v2
--v2 flag identified, flow redirected to the oc-mirror v2 version. PLEASE DO NOT USE that. V2 is still under development and it is not ready to be used. 
2024/03/21 07:02:06  [INFO]   : mode mirrorToDisk 
2024/03/21 07:02:06  [INFO]   : local storage registry will log to /app1/0321/out/working-dir/logs/registry.log
2024/03/21 07:02:06  [INFO]   : starting local storage on localhost:55000
2024/03/21 07:02:06  [INFO]   : copying  cincinnati response to out/working-dir/release-filters
2024/03/21 07:02:06  [INFO]   : total release images to copy 0 
2024/03/21 07:02:06  [INFO]   : copying operator image registry.redhat.io/redhat/redhat-operator-index:v4.12
2024/03/21 07:02:09  [INFO]   : manifest 9b12ce1683071e876fdd0f50477907301ddfc70a631a85bf99d7a2a6e6890a9c
2024/03/21 07:02:09  [INFO]   : label /configs
2024/03/21 07:02:27  [INFO]   : related images length 6 
2024/03/21 07:02:27  [INFO]   : images to copy (before duplicates) 187 
2024/03/21 07:02:27  [INFO]   : total operator images to copy 187 
2024/03/21 07:02:27  [INFO]   : total additional images to copy 0 
2024/03/21 07:02:27  [INFO]   : images to mirror 187 
2024/03/21 07:02:27  [INFO]   : batch count 23 
2024/03/21 07:02:27  [INFO]   : batch index 0 
2024/03/21 07:02:27  [INFO]   : batch size 8 
2024/03/21 07:02:27  [INFO]   : remainder size 3 
2024/03/21 07:02:27  [INFO]   : starting batch 0 
2024/03/21 07:02:48  [INFO]   : completed batch 0
2024/03/21 07:02:48  [INFO]   : starting batch 1 
2024/03/21 07:03:01  [INFO]   : completed batch 1
2024/03/21 07:03:01  [INFO]   : starting batch 2 
2024/03/21 07:03:24  [INFO]   : completed batch 2
2024/03/21 07:03:24  [INFO]   : starting batch 3 
2024/03/21 07:03:36  [INFO]   : completed batch 3
2024/03/21 07:03:36  [INFO]   : starting batch 4 
2024/03/21 07:04:05  [INFO]   : completed batch 4
2024/03/21 07:04:05  [ERROR]  : [Worker] errArray copying image 1/4 from manifest list: reading config blob sha256:fde9cd04ec3f7a272adbcbda875ee0e79f958ef6da21ca03f23618a6917d20b0: fetching blob: received unexpected HTTP status: 502 Bad Gateway
2024/03/21 07:04:05  [ERROR]  : [Worker] error in batch - refer to console logs

4) No errors