Navigational Waypoints clutter map

Today after breakfast I quickly clicked together a walk on my Android tablet running locus 4.33, which I then shared to my Android smartphone running the same version. We took off and in the car I imported the GPX route only to find my map cluttered with black and white "pedestrians", which on activation indicate to turn left or right, etc.. This had never happened, I had no idea what this was about. But it was painfully obvious that this was entirely unusable. So instead of starting on a nice Sunday walk in the sun I sat in the car for quarter of an hour until I finally managed to get rid of what I later found out to be 126 of those pedestrians. And then fell on the idea to not import the track but just open it on the smartphone. For whatever reason that worked - I could see and follow the track and no "pedestrians" in sight.

Later at home I checked the original track on the tablet. In the Information box I found an entry Navigational Waypoints which I had never noticed and never used. Why was this track as a first after several dozens which I have put together on Locus equipped with these totally superfluous "pedestrians"? I tried the search in the settings but it doesn't know anything about navigational waypoints, so there doesn't seem to be a way to turn them on or off.

I need to solve this problem because otherwise Locus is rendered completely useless for my humble and ordinary purposes.

Thank you for reading.