Keep getting "Finish changing your pass..." notification
I'm using El Capitan. I recently reset my Apple ID password. I've cleared my keychain and logged out of iCloud and back in. Now at random times a day I get a notification with, "Finish changing your pass..." followed by, "Your passcode also protects access to data stored in iClo..." Then I have the option to click 'close' or 'Enter Passcode." It doesn't matter what I click, the notification goes away, nothing happens, then it pops up again in a few hours. See attached.
MacBook Pro (15-inch Early 2011), OS X El Capitan (10.11.1)