I had some trouble with Handoff on my mid 2012 MacBook Pro, but it has been working well with the latest beta. My Mac Pro 5,1 has been modified with an updated WiFi BTLE card and has always supported Handoff well since ealry Yosemite.
Since the Beta was working so well on the Macbook Pro, I updated the Mac Pro to the latest beta. After all updates, the General Preferences panel shows Handoff enabled. The Mac Pro was pushing messages from apps to the other systems (Safari pages, calendar stuff etc.,) but it would not show incoming data from other systems (iOS 9 or OS X.)
After I logged out of iCloud and logging back in, it now does not display any Handoff activity - incoming or outgoing.
What is the process to flush the iCloud and handoff data from the system so I can restart the connection process?
Any other ideas to restart the process?
I guess, I could try another local account.