Push notifications need to be deleted manually

Since a few month i have the following issue:

If i click on the notification or read the Email in the app the notification still stays on my Phone. So i always have to delete the push notification manually.

It is just a k9 issue. On all other Apps (signal/banking/etc) the notification gets deleted when i read the Massage.

Didnt Chance any options. One day the push notifications just decided to stay

K9 Version 22.0 | Android 14 | OneUi 6.1

I am having the same problem. Galaxy S24FE very annoying. Thank you