iCloud synch Sierra with iOS 11

[quadt89]

Hi!

I don't know if I am right here, but I have to roll back to Sierra 10.12.6 from my Time Machine.
Wit my iPad and iPhone I am using iOS 11 Beta 1, but on my Mac Safari doesn't sync my iCloud tabs, and is blank. On my other devices I can see the actual tabs.

Is iOS 11 not compatible to sync iCloud tabs with 10.12?

Do you have any tips to solve this problem?

Thanks