A Lover Not A Fighter
Modio corrupts 98% of gamesaves you load into it.... Are you rehashing/resigning using your profile ID's? You have to make sure you do that or else the gamesave won't load up on your gamertag (that's might be why it's starting a new game, because your GT doesn't have a save linked to it...) If not pm a screenshot of what the save looks like before you press the Save, Rehash and Resign button.
Nice work dude, I have a question, If you use this online, will it mess up leaderboards? and does it pop any incorrect order achievements?