So for some reason two of my apps are suddenly switched to French. It wasn't a big deal as I can read it, but it was annoying.

I had my system languages set as follows:

1. English (Canada)
2. English (United States)
3. French (Canada)

I assume it was because these apps didn't have localisations for my first choice, but I don't know why they instead jumped to the third option, skipping the second.