I don’t know what to tell you. Maybe it is a pull error.
You can try renaming your Duimon_Mega_Bezel folder and doing a fresh Git clone.
Edit: I did create the 270 version later so the files may have been renamed.
You should have these presets in the Lynx folder.
Lynx-[STD]-[LCD-GRID].slangp
Lynx-[STD]-[LCD-GRID]-[Night].slangp
Lynx_Alt-[STD]-[LCD-GRID].slangp
Lynx_Alt-[STD]-[LCD-GRID]-[Night].slangp
Lynx_Vertical-[STD]-[LCD-GRID].slangp
Lynx_Vertical-[STD]-[LCD-GRID]-[Night].slangp
Lynx_Vertical_270-[STD]-[LCD-GRID].slangp
Lynx_Vertical_270-[STD]-[LCD-GRID]-[Night].slangp