Problem: You have a route and you only want to adjust the pace. The checkpoints should then reflect the new pace.
Solution: Select the route and open the info pane. Enter the new average speed.
Tip: The info pane also displays an arrival time. It's based on the duration (by speed and distance) and the current time. This is helpful if you want to finish a route before sunset and you need to know when you should start.

This message appears when TrailRunner is not able to append a selection to the route.
This is the case when the track network does not have a connection to the selected waypoint.
Should there be a connection, some tracks might have to be set to bidirectional (see Shortcuts for Layout Routes in the Library).