@idefix37 The gpx files I'm using came from the Supercycle bike computer app and contain my exact coordinates updated every second for the duration of the ride (2-3 hours). That's why there are so many waypoints.

I just manually created a route in Windy that matches one of my gpx files. I had to use 15 points to get all the turns but it's 44 miles and should be nearly identical to the gpx from my bike computer app.

Unfortunately, scrolling thru the timeline one hour at a time, the data/graph section only updates when it feels like it. That ends up being roughly every other or every third hour. Sometimes it updates every hour for like two or three hours in a row and then I start getting suspicious. "It's working now... something must be wrong."

I need it to work all the time.