Hi Chris. We had our Senior Android engineer look into your logs and he doesn't see evidence of any app crashes. Tech Support suggested turning off Brief Stops. It could just be that the mobile app map can't render a 900 mile trip in one go. If that doesn't fix it, our Android engineer says it sounds like it could have been Google Maps having an issue displaying the trip; that we basically hand the polyline to Google Maps. Let me know how it goes.