If I create an "out and back" course, my 840 will start giving me prompts to make a U-turn when I haven't yet reached my mid-point. When this happens in an area I'm not familiar with, like it did the other day, it becomes a dangerous hazard.
The GPS is accurate, so I know I'm not near my destination (even that map shows I still have more to go), but this has happened on a few courses already, and I'm wondering if this is a bug, or if there's some way to minimize it from happening?
It does also happen on single destination rides, where it will play the music marking the end of the course when I'm close, but really there.