Angry about all my save content going missing

Hi I just put forza motorsport 5 into my Xbox One to check for dlc and play a bit after not playing since November 2014 (all save content was still there then). It told me it needed to sync up to my Xbox so I let it. When the game started up my entire save content has disappeared and made me start from the start. i have not deleted any of the content and I did not interrupt the syncing process. I have worked hard for all the cars i had including hours in fine tuning them and the races i won which was about half of career mode. I went to manage game and it told me that I have 40.7gb saved and then I went to compare games with a friend and it told me I have done 156 hours of game play with a gamer score of 480/1400 with 48 medals also it still has all my lap times I have posted. I have all dlc for it too. My Forza Horizon 2 had to sync too but that still had all save content in it. What can be done about this as I am angry that all my save content for forza 5 is missing and hours of game play has gone down the drain.

When you were asked to sync did you select the option for the old save or the newest save? If you picked the new save most likely that’s how you wiped your save file. Unfortunately there is nothing you can do at this point anyway, if your game save is gone it’s gone for good.

sorry about the late reply. it did not give me an option it just synced

Having similar issue again…F5 wants me to start a new game, as does Horizon Fast and Furious…even achievements have disappeared. Now waiting a extremely long sync…AGAIN!! with Horizon 2. This syncing business does my head in…i can never say oh i’ll just play for 10 minutes !!