If replacing the file doesn't completely resolve the issue, secondary system conflicts may be blocking the game engine from reading the .ff files properly.
Inside the Data folder, delete the config and indices folders.
This is the most successful community fix for PC players experiencing the 6036 crash loop. It forces the client to re-index and download missing structural data packs. Ww Code-pre-gfx.ff Download
: The .ff file may be corrupted or incomplete.
Stay safe, mod responsibly, and always verify your sources. If replacing the file doesn't completely resolve the
It could be. Modded .ff files sometimes contain unconventional code that triggers heuristics. Upload the file to VirusTotal. If only 1 or 2 out of 60+ antivirus engines flag it, it’s likely a false positive.
Delete in the main directory except for the Data folder, ModernWarfare.exe , and Modern Warfare Launcher.exe . It forces the client to re-index and download
When the game triggers DEV ERROR 6036 alongside a ww_code_pre_gfx.ff block, it means the engine found a size or hash mismatch. This typically points to:
Click the gear icon next to the Play button and select Scan and Repair .
Run the tool in Battle.net. The client will identify the missing ww_code_pre_gfx.ff and download a fresh copy. Consoles (Xbox/PS5) :