I think it's from the first leg of your departure.
Anyways, good luck about taking Air Canada. Recently a pair of sisters were refused boarding the second leg of their trip:
https://beta.ctvnews.ca/local/british-columbia/2021/1/12/1_5264473.html
No, I am not only one seeking out your posts and commenting. But you are the one seeking out my posts and commenting. I don't have any issues and we can go on like this.