Yeah that was me. Then I came to Canada on 8 Sept and the immigration officer had no idea what I was talking about in terms of the portal. So I confirmed the night I got here, and uploaded everything. I've been waiting since then for COPR, called them yesterday to make sure I hadn't done anything wrong and she just said I had to wait until an officer got to my application. I've emailed the IRCC confirmation email, but nothing. It's getting pretty desperate now because I have a job lined up on condition of PR, and I just need my COPR.
If you come over to declare yourself here, just prepare to wait. You'll either be super lucky and get it right away or wait like everyone else!