Resume Games Quickly setting is gone

Hey, guys! This setting is gone because it is now simply a part of the operating system, and cannot be turned off. Since this setting is only for when using Instant On and not while in Energy Mode, to have the games not Resume Quickly, you will simply need
to change your console's power settings to Energy Mode.

I have also ran into this as well. I am a member of the preview program and am not sure if that's not why is missing.

so on your power and startup in settings it says resume games quickly ?

I don't switch disks when I expect the "resume quickly" function to work. For example DR3, I will load the game up make sure I hit a save point then after shutting down (standby mode) when I say "Xbox on", the system comes on fast but when re-loading DR3
it boots the game from the beginning.

I haven't played that game for a while at least not since the last update so maybe I will give it a test later today.

If your copies of ac4 and dr3 are disc based, then every time you take the disc out it will make the game start from the beginning. As you got the TF bundle, it will do it as it's digital download. The other games will start instantly if you leave the disc
in the tray. At least they should.