I assumed the text LEFT and RIGHT directions were straight from them, so okay, that could possibly be part of the problem. You sometimes tell me to turn right when it's clearly a left at a 90-degree T intersection (not ambiguous).

Do you choose the waypoints yourself? Because this thing had waypoints that shouldn't have been waypoints. Places where I was staying on the same road (and the vector data was correct showing me staying on the same road), but it was telling me to make a turn.