Thanks for answering.
I tried this and its the exact same message, i talked to other people using Horizon to mod Forza and i was told its something after the latest patch that made this happend, a bug somewhere in the program… Can this be correct? because i think i’ve tried just about anything.
I can unlock the liveries, but its the saving of the file that doesnt work.
So let me explain incase in a bit more details:
I extract LivGroups or LivCatalog (paint file and vinyl file)
Put it back into Horizon, successfully unlocking everything.
Now, when im pressing save this one pops up: http://pastebin.com/1sGqkCxK