Hello,
I bought the Ultimate Edition Hard disc and have been playing since Saturday/Sunday, Sep. 30/ Oct. 1. All the VIP and Fast and Furious Cars were working but Friday, Oct 6, 2017, I signed on and all my VIP and F&F Cars were gone. They show that I must purchase them again, but when I click to buy in store, it shows I already own them. I also lost some of the forza edition Cars. I have tried restarting the Xbox, I uninstalled and re installed both car packs, and tried the redeem code again, still no fix.