Invisible Tracked Challenge

Ever since the launch of the game, in Week 1, I always have 1 of 4 tracked challenges, even if the list is empty. I suspect I tracked a Week 1 challenge, completed it, and the track never went away properly. I can only track 3 challenges now, since the 4th is always occupied.

Not a massive bug, but still a slight annoyance.

Playing on PC, Steam, Windows 11.