I have been spectating my friend using Target Practice mode, while we both used Osu! Cutting edge.
When I tried to spectate him, it instantly gave me a fail screen, than teleport me back to the game, back fail screen, back to the game....
Problem is, when you are trying to spectate person, who plays with this mode, you are going to create another map for yourself.
You are not really gonna spectate your friend, because it generates a completly new map.
Then I took "No Fail" mode, so I can "spectate" him without getting fail sceen and teleport back to the game. Surprisingly, it worked. So I made some screens from my view.
I wrote him and we changed positions, so I was sure, it is not only my problem. Same result.
So he took No fail as well to make some screens.
Screen
http://prnt.sc/dofqa3 is his score 3300. At the screen
http://prnt.sc/dofprt his score is 7000, even if he fails at my screen.
Same situation at the screens
http://prnt.sc/dofrij and
http://prnt.sc/dofr1b" just from his view.
Version: b20161227cuttingedge