Directions say 2nd exit, reality is 3rd exit

Hi. I just used Organic Maps to for directions, and noticed that one roundabout intructed me to take the 2nd exit, when the map clearly showed the 3rd, with the latter being correct. I tested the diections given by, and the same instruction to take the 2nd exit was given there. Below are screenshots of the behaviour:

Any idea what goes wrong here? Is it because the roundabout flare is tagged as a service road? If yes, would “unclassified” or “minor” be a more appropriate highway tag?

Service road seams right, as it leads to the parking of a school area. But with OSM and Organic maps both giving incorrect directions, something needs to be changed. When the data seems reasonable, perhaps the routing should be adjusted instead? How would one go about changing that behaviour?

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