The design is that when the field lights are on, the right turn signal should be the side lights instead of a right turn signal. The left turn signal should continue to function normally.
If both the side lights and left turn signal come on when you put the switch in that position, something wasn't connected correctly. Sounds like that wire was connected to the left side instead of the right side. That would explain why nothing at all happens when you try the right turn signal.
I don't have an electrical schematic, so I have no idea where that connection is made. If you don't get an answer here, I'd suggest dropping by the local dealer. They should have a troubleshooting book with a section for the electronics. I know my dealer has allowed me to read through that book, I assume your dealer would extend the same courtesy.
-Lance