Not dropping combat (Blazeridge Steppes).
On a few rare occasions, I have been “stuck” in combat mode – but this is usually because something else decided to attack me, usually that I didn’t see because I was starting to head away, and if I am in an area not quite spacious enough to cleanly break, it stays “hostile” even if it can’t reach where I am at.
Not sure if this is the case for you, just suggesting it as a possible explanation.
It’s a pretty open area, the only thing i could think of, if this is the case (and the thought did cross my mind) is: there may be an NPC enemy under the landscape in the area, trying to attack me, but not being able to. Because there’s no one else near, when i check. I cleared the surrounding enemies when i had 1st noticed this.