I wandered through the waypoints, killed everything else, but the final waypoint where the target was dead did not trigger, the target never identified. After wandering for another 10 minutes or so, I finally aborted the mission.
To ensure that was the target, I repeated the mission twice. Once with a proper approach (target identified, killed, mission successful). Then a second time sniping the same enemy once again and once again mission could not be completed.
Now it states in the mission briefing to identify the target then kill it; so maybe it's by design that you can't sniper kill assassination targets.
Bug or not? Thoughts?
Edit: fixed typo.
Edited by Flyby215, 22 December 2019 - 07:12 PM.