If I create a running route in Garmin Connect and then try to follow it on the watch, it generates a route but after about a mile will recalculate and just takes me to the end of the route.
It's on urban roads the whole way with no access restriction. I know I can change it to "follow course", but because Garmin choose to overlay a purple line on a map covered in purple lines it's not the ideal solution.
Not sure if I've got a setting wrong somewhere but I don't think so.