I had the same problem then tried going to Notes --> Preferences --> Ticked the "Enable the On My Mac account"
The new note icon is back (no longer gray) on my Notes view. Hope this helps.
sunshineonmapleleaves
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Canada