A lot of 2020 applicants, including me, have been posting in this thread: https://www.canadavisa.com/canada-immigration-discussion-board/threads/cec-outland-applicant.724009/page-79#post-9747918
Someone has received a portal email...
https://www.canadavisa.com/canada-immigration-discussion-board/threads/ircc-permanent-residence-confirmation-portal-cec-outland.740753/
Do you know if they had already started your security when you arrived in Canada and changed your address? Also did you phone them to change your address or submit a webform?