Tried a translation app, but yeah it seems to me like the game isn’t properly registering that you have logged in again.
While probably not, did all your missions take over 12 hours?
You can probably mention it in the Known Issues post :-).
So I got the same challenge but I have no idea what I did. I’m only on chapter 14 yet it says I completed 18 challenges, what does that mean? What challenges did I complete? I’m so confused on this challenge