Safely eject the USB drive from your PC and insert it into one of the USB ports on the front of your PS2.
Ensure you ran USBUtil properly and that the ul.cfg file exists. usbutil 22 english
In OPL, press Triangle on the problematic game to open its specific settings and experiment with turning on Mode 1 (Debug Colors) or Mode 6 (Unhook Syscalls) . 3. Games Missing from the OPL List Safely eject the USB drive from your PC
Preserving Gaming History: The Role of USBUtil 2.2 in Modern Retro Gaming usbutil 22 english