Anyone with the same problem?
I cannot add any extra views anymore.
When I try click the plus button nothing happens.
Need more info.
Browser? → Delete history, cache
HA Log? → Any errors visible related to your action
Thanks for your feedback.
I solved it just now.
Somehow its caused by the Material You theme. I just picked another one and the views are clickable and I can add new ones again.
Cool, good luck!