Glitch! Triggered Soldier / Invisible Enemy

Soldier is glitched so that he is always triggered (with the yellow exclamation) as if there is an enemy nearby. This makes it so that I can't pillage corpses, or pick up items on the ground, or heal in a fireplace. If the triggered soldier dies, then another soldier in your team takes its place. Also I see a red dot following me on the minimap, but there is no one there. It's like there is a ghost enemy following me and aggro-ing my team.