Simply having the "DLC" files in the folder doesn't always grant access unless your account owns the licenses (Premium Edition or individual purchases). Technical Specifications
Version jumps like this often include background updates to the Forza "Arbiter" system to maintain leaderboard integrity. Key Features of Recent FH5 Updates fh5updatev16348180tov16426440withdl full
Fixes for players hitting the 1,000-car limit. Compatibility and Installation Notes Simply having the "DLC" files in the folder
Recent patches added several highly requested wheel brands like Vorsteiner and HRE. fh5updatev16348180tov16426440withdl full
Better props and snapping tools for creators.