I am having the same problem. Since the latest update, I keep getting this message:
"An error occurred while synching.
"One or more attachments have unsafe names. Please run the data integrity scan."
I run the data integrity scan and it finds no errors.
I also continue to see strange behaviors in the notes editor, but it is better than it was a couple of months ago. If I can pin down a repeatable example I will report it more fully.
Keep up the good work!