I have 8 race to go in this serie but when i click ont start it brings me back to the begin of the game.
I tried different cars etc but still the same result the other series ar working without any problem.
Known issue with many threads:
http://forums.forza.net/turn10_postsm49772_Road-America---Problems-with-update-while-in-the-middle-of-a-series.aspx#post_49772
Also acknowledged in last week’s Week in Review. Watch for today’s Week In Review to see if there are any updates.
As with most snags, you should cold reboot your console if you have not done so in a while - shut down, unplug, then start up.