That's because the games for that week were simmed the previous week.
Because of the addition of studio updates, games are now simmed when you advance the week.
For instance, if you finish week 1's game, then click to advance the week, the loading screen will say "preparing studio updates" or something like that, and that is when all of week 2's games are simmed.
If you want to reload and re-sim, then you'll have to reload to a save point that is before you advance the week.