I think this went missing in build 3317.
fontFilePath
contained the full path including file name in earlier versions.
{
fontFilePath = ".../Schriften/Sudo/sudo";
fontFilePaths = (
".../Schriften/Sudo/sudo"
);
instance = "<GSInstance 0x6000033df6c0> Bold Italic (700.0, 1.0, -188.0)";
}