Iphone issue traps in map view

For some reason just recently when I am in map mode and arrive at a double trap say 0897 and 0898 when i tap on the triangles so they split and show both and I can select one or the other they just ping back rather than staying out for selection. (iphone 7, iOS 15.7.2). It behaves as expected on my other Android phone.

Is this in Line Walk mode, or the main map?

Main map. I have never used Line Walk. What does it do that the list view doesn’t?

I have that issue to with my samsung phone