Ive had similar experience with a Hyundai with steering assist. It would get confused by messed road lining all the time. Meanwhile it had no problem climbing a road curb that was unmarked. And it would try to constantly nudge the steering wheel meaning I had to put force into holding it in place all the time since it which was extra fatigue.
Oh and it was on by default, meaning I had to disable it every time I turned the car on.
Oh and it was on by default, meaning I had to disable it every time I turned the car on.