The UI was genuinely so bad. Why did they do it like that?

I'm glad I remembered to go to the challenge screen, click in on each challenge and then hit redeem reward on each challenge, but how was I supposed to know that without reading about it on Reddit?

I would've been pissed if I didn't remember to do that and lost out on the rewards for challenges I completed because you can't access that part after server shutdown.

They should've made it clearer.