New challenge reopened previously completed challenge

[MrMatthias]

I started a new challenge and it opened the challenge from yesterday, showing the last question already with my answer. Pressing continue completed the challenge with 550 points. The challenge from yesterday is shown as completed with 500 points.

I'm not sure how to reproduce it, maybe I didn't press complete or closed the app during the score dialog since I was on the go.

Edit:
Steps to reproduce:

• Finish a challenge
• Finish a lecture
• Go back to Challenges section

Result: the last answered question of the challenge reopens. If you go the the practice section the same will happen.

I'm on iOS 14.0.1