Okay, I reset all the turn restrictions (did not rebuild the intersection at either 16th or 17th) . Now it turns north at 18th instead of 17th. Not the result I was looking for and not a result that makes any sense to me.
Regional Coordinator: Mid-Atlantic, US
Verizon, Nexus 6, Android 6.0.1, Waze 188.8.131.522