It's been 9 days since KL started and I've played at least 5 sets every single day except Sunday. I should have 8/10 for that challenge but I only have 5. I saw what happened today. I was at the 5th set, middle of the match and opponent has rage quit or lost connection or whatever. I got the win and it counted as a set and it even changed to 6/10. Then I restarted the game because my points were the same as before the 5th set. When I got back to online screen I saw that I did get the points but that counter was at 5/10 again and it's been like this since Saturday.

So if in those first 5 sets you get 1 rage quit it just doesn't count for some reason. Please fix @NRS.