Solved

Log out greyed out

What did you try to do?
Tried to log out of my account

What happened instead?
Log out button greyed out

Did the problem happen while using wi-fi, mobile data, or both?
Both

Did the bug happen in the app, on PC, or both?
App

What is the model of your device?
iPhone 13

What is the operating system?
iOS

What is the version number of the operating system?
13

Can the bug be reproduced?
Yes, deleted the app several times and always had the same issue (i have two accounts in different leagues)

Additional comments:
Greyed out, even after uninstalling the app.

that will be why then, thank you for replying. 

When was this made a rule?

Earlier this week. It's a little controversial but let's see how it develops. The argument behind it is that it improves game security.