GPX Viewer

Since several days the view of my openstreetmaps when following my actual location on a walking route outside, has become oblique. Similar to an oblique view in Google Earth.
When zoomed in on my location even my blue actual locationdot on the line of the route has turned from circular to elliptical. Distance scale is then about 100m or smaller. When shifting or zooming the map with my fingers I can influence the amount of obliqueness. Is this a new feature? Can I disable this because I really do not like this. I don't think this is caused by the OS on my OnePlus7, running Android 11. Notice that this phenomena has occured one more time several month ago, but then disappeared after some time.