1) Your camera should not be like that with a re-created Tennis.ini, nor split-screen be turned on except in a match with 2 players controlled by a user (ie: in the Training Club).
I tried to remove my Tennis.ini and the resulting camera was the default camera. So something mysterious is going on here...
Could you remove the Tennis.ini again, launch the game, a match, then close the game and send me the resulting System.log ?EDIT:
you can change the camera at any time during a match by pressing Esc to see the In-Game menu, then click Camera
2) I got your saved game and started the doubles and got a doubles match like expected. I removed my Tennis.ini and started again and got a doubles match again.
I'm afraid there's a strange bug lurking around and it might occur only in a special case.
You don't have any Mod, right ? (Player & Tour base Mod are harmless, but a menu mod could give issue like this)
If you start this match, you still get a singles ? If yes, could you start it now, close the game, and send me the resulting System.log, in case the engine noticed some error ?
3) I actually didn't give any thought to that...
Now that you made me think about it, I'm not sure what to do about it. Maybe I'll raise a bit the penalty of coaching the player if the coach isn't here (nor an assistant). But I think it'd lower the fun too much to completely turn it off, right ?
4) This is actually a new feature..!
I think it's faster and more convenient. You can interact with most settings by clicking on their background.