Sydney has been helping out Ottawa in processing the applications for a lot of candidates. However only ottawa can stamp on the passports. So once sydney makes DM, they transfer file to Ottawa and then someone in ottawa office will confirm the decision and send ppr.
All of our applications had to make a move to Ottawa from sydney at some point. Mine took 3 weeks. Your transfer is simply taking place at the end of your process instead. You are near the end of the road. Just be patient for a few more days/weeks. It is coming.