Simply placing a CPK in the folder isn't enough; the game must be told to load it:
Introduction Creating and managing CPK files is essential for modding Pro Evolution Soccer 2017 (PES 2017). CPK archives contain game assets—kits, faces, stadiums, textures—and are loaded by the game via DpFileList. When a CPK file builder fails or produces broken archives, it can cause crashes, missing textures, or assets not appearing. This essay explains common problems with CPK file builders for PES 2017, provides a step-by-step fix process, offers best practices to avoid issues, and notes legal and safety considerations. cpk file builder pes 2017 fix