Progress lost

Hey so I recently brought out reach to play on my Xbox One. When I started it up, it basically gave me the new recruit messages and all my progress was gone. The only time I ever played reach was offline because I never used my 360 for online play so I never got LIVE. I thought I might have had to transfer it from my 360 so I booted that up and my progress was there. However, when I connected my router to my 360 and got love working on that, once again my progress was gone…only this time on the 360 too. Is there any fix or am I screwed because I only ever played offline. I’ve beaten solo legendary like 5 times and would really want that shown lol.