I remember that on pc there was a pop up, inviting me to the new challenges, although the timer on the app had said like 16 min to go.
Fortunately I didn’t follow this invitation but switched to the app again instead. There I had to wait this last minutes, and when checking on pc, there was the waiting time again, and no immediate access to the new challenges.
So that pop up came by mistake.
As I understand it, some problems could be connected to entering at that point and they are working on a fix. That’s my guess for now, will replace with solid information when the bugs and issue news come out.
Edit: Added a link to pixel information about the issue ⬇️