My Mail Rules are not Syncing between my Mac Mini and my MacBook Air. Can anyone confirm is this is working for them or is this another iCloud Beta Issue.
I did too after upgrading both machines. But I logged out of iCloud on my MacBook Air to see if some other features would start working but I then lost all of my Rules.
Could you change a rule one of your machines and see if it gets copied over to the other one? Should happen pretty quickly.