After talking to my attorney, here is a more accurate sequence of events for my application.I am in the same boat. I am also an inland applicant. I received PPR on May 25 and sent passports on July 1st.
On July 23rd, I received an email to confirm my residential address in Canada. I confirmed the address on the same day and no response since then.
PPR: May 25 2020
Passports Delivered to CPC-Ottawa: July 6 2020
Email Received from CPC-Ottawa: July 24 2020 - "We would like to verify the Applicants current country of residence and address."
Email Sent to CPC-Ottawa: July 24 2020 - Confirmed that we are in Canada along with our address.
Email Received from CPC-Ottawa: Aug 4 2020 - "Please note that we returned your original documents without a Confirmation of Permanent Residence or permanent resident visa being issued. We want to assure you that this does not affect the decision of your application. In order to help you accordingly we would like to verify all applicants current residential address."
Email Sent to CPC-Ottawa: Aug 4 2020 - Reconfirmed we are in Canada along with our address and asked if we will be getting landing done over email/phone.
Email Sent to CPC-Ottawa: Aug 18 2020 - Followup to the previous message as we still didn't receive passport (the return envelope also not activated yet), no status update on the application and no response for previous email.
Called IRCC Customer Care: Aug 27 2020 - Checked about the passports status as we still didn't get any response fro CPC-Ottawa and still not received passports back. The customer care rep told, there is no status on the application about our passports being returned. They told, mostly passports are still with CPC-Ottawa and asked us to contact them again to get a status update.
We will be sending another email too CPC-Ottawa soon, but not sure when we would get any response from them and how long all this will go on.