Using the ultra run activity, I tried loading a PacePro plan for a roughly 4.8 mile course with navigation enabled. I clicked "more" and ensured that guidance alerts were enabled. For three consecutive times, the watch crashed. I then tried just navigation with the course loaded and guidance alerts enabled (i.e. no PacePro plan), that worked and most but not all trails showed up with the "next fork" feature. However the one major turn alert - a 90 degree hard right turn initially showed up as being 1.5 miles away but then later disappeared and I was never alerted to turn. As this was an out and back course, I also did not receive an alert for the hard left turn on the way back. The course was correctly rendered on the map however.
Also, the ClimbPro feature mostly worked well, but a few times on the way back it got descents and ascents mixed up.
So the turn-by-turn navigation that I previously had on the Fenix 6 does not seem to work as well on the Enduro so hopefully these issues can be addressed quickly.