Because the CODEX release is static (base version 1.0), users historically report the following issues:

The CODEX crack sometimes disrupts the XInput 1.4 loop. Fix: Use a third-party wrapper like x360ce (64-bit version) placed in the root folder, or enable "Steam Input" if adding the game as a non-Steam shortcut.

Compare these files (must be CODEX’s, not original exe):

If antivirus deleted crack files, re‑copy from ISO’s CODEX folder.