Fenix 7 user, 11'28 software.
When navigating a course, the waypoint alerts appear too late sometimes. But really late. From 50 to 400 meters late. I double checked and the waypoints are added properly to the course.
When this issue happened, the up ahead feature was not showing the correct distance to the waypoints, but the map is showing the waypoint at the correct place (see photo)
Only tried with hike and trail run activities.
The issue happened importing routes from Wikiloc, locusmap and komoot to connect. Then, editing the waypoints with connect.
In the attached photos you can see (1) the alert and (2) at the same place when the alert happened I took a photo and the watch map is showing the waypoint at the correct place, but the alert didn't appear at the correct place.