Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object. at Inveigh.Arguments.ParseArguments() at Inveigh.Program.Main(String[] arguments)
The error comes from line 295 in the Arguments.cs file because it is trying to insert into a null string:
Program.argMAC = Program.argMAC.Insert(2, ":").Insert(5, ":").Insert(8, ":").Insert(11, ":").Insert(14, ":");
The only solution was to enable IPv6 on my network adapter. Even if I use -IPv6 N I still get the error.