Is this a HERE internal problem ???
Noticed to see as a hint:
This also seems very familiar to me, one reason is that the MRA machine internally means that you turn and turns the map in the planned direction of the tour, unfortunately the MRA machine does not know exactly that you unfortunately had to stop before turning, and since it does not go any further, the card changes back and that goes back and forth....
Proposal for the MRA machine:
The turn and the associated arrow position of the location should be followed more slowly and not hastily so that the turning can also be done safely on the map ...
So it is better solved with other apps and does not irritate so much.
Currently it is important to know where the route should actually lead in such an incident and without looking at the map ..!