I'm experiencing similar bugs as well, some which are different from yours that I'm experiencing are:
1. The keyboard overlaps the text boxes when switching to emojis, have to use back button to fix it.
2. Some swipes on the notification drop down area opens the app where the notification is coming from, happens 1 in 10 times but is still annoying.
3. Some apps seem to function slower sometimes. Like 1 in 5 times, apps like Spotify and YouTube deliver delayed responses.
I had a clean and smooth install as well, and to address some other old issue I even performed a factory reset after installing A11, yet experiencing some issues.