Ghost update is when you open your GCkey account, you see “Application/Profile updated” in the status column. But when you open the application, nothing has changed in it. And when you go back to the home page, the status goes back to “submitted”.
I got that as well.
But after the eCOPR approval, I linked my PR card application.
Today I received a ghost update, but the status still shows “submitted”
Yes, here : https://www.canadavisa.com/canada-immigration-discussion-board/threads/pr-confirmation-portal-timelines.734183/
But it not for PR card specifically