Season bug

I just started playing ultimate team, I was doing the epic challenges the dream team to start grinding, I finished Step Up, Becoming Legends, Unreal run, and Starstuck, but I only got 3 stars on The Dream Team. I finished it countless of times, but it would not save the 2-3 stars I'll be getting CONSTANTLY. Please fix the issue and I heard it has not been working since like 1 am.