I don't know what else to do. I haven't had any challenges for more than a whole season now. Before, it was frustrating but now I can't do the challenges to get the flatline skin. Also I've had these daily challenges since the Post Malone event and I haven't gotten new ones since.

Your Daily Challenges have been frozen as completed since Post Malone -or- they've just been the same challenges that you've been completing?
Which platform are you on and are you on the correct updated version for that platform? That may sound weird, but I know some folks downloaded the PS4 variant onto PS5 as a workaround recently. And what's your username and geo region? If you'd rather, I can send a chat req for the latter.