Before updating, run the Verify BIN files before installation.bat (if provided with your FitGirl install) to ensure no files were corrupted during the initial installation.
To successfully apply the Final Fantasy Type-0 HD Update 1 (CODEX) FitGirl Repack finalfantasytype0hdandupdate1codex fitgirl repack upd work
I can provide specific configuration file tweaks based on your setup. Share public link Before updating, run the Verify BIN files before