2016 15" MPB and iPhone 7 Plus. Universal Clipboard is extremely unreliable. Sometimes it just works, but more often than that it doesn't seem to work at all. I've tried the regular solutions - signing out of iCloud on both devices, turning handoff off and on again, restarting, etc... I can't get it to just always work. Is it me? Anything I could do? Or is this feature simply flawed?