@syntron
Since did not specify in your OP, I assume you have your Aeroplan ticket with actual ticket numbers, as well as the confirmed PNRs from TK and SQ.
There are a number of other threads on AC FT, some from recent months, where a few of us posted experiences with having all the necessary items, confirmed bookings, ticket numbers and itinerary confirmations from the partner airlines, yet, people have discovered that segments were cancelled or dropped and they were not notified. Sometimes Aeroplan issues new ticket numbers but no one is notified and then there is no booking to match your ticket. For some of us, it happened while already on our trips.
So we wish you luck in your dealings to sort this out in a few hours.
I also remind everyone to constantly check your bookings and itineraries with the partner airlines and any other resource you have.