Playing Family Guy, Bobs burgers, Archer, Star Wars no longer saves games if you exit. I'm sure there are others, those are the ones I've been playing on my 360 lately. I always exit properly and it says saving game.
Also, controls are now going back to defaults after you leave game. I always set nudge to the d-pad, and lately this reverts to Ls when I leave and return to the game.

Not sure how long it has been like this.