Elevation difference between iOS app and OSX

Noticing a drift between the elevation reported by the iOS app, and the OSX application (3/4/15 version).  Was ~1-2m per lap. 

Hardware. MBA/6+(8.2)/KICKR using ANT+

Also when in app, I’m unable to get any of the menu items in the OSX menu bar to work, it won’t take the focus off the main window to allow me change the view menu.