When are slots duplicated?

When the slots are replicated as shown in the image, the status would change.
When does the status change in this way?
Does the replication and status change when A/B redundancy is enabled?
sudo nv_update_engine --enable-ab

I have not been able to resolve this issue yet. Please help.

Sorry for the late response, our team will do the investigation and provide suggestions soon. Thanks

Yes, the function stars to work after A/B is enabled.

Which of the following would it be?

  1. When you enabled it.
  2. After enabling and at the time of reboot

After enabling and at the time of reboot