Why some Via points don't appear in QueTurns?

[si4xp]

I changed the default route between Chicago and Toronto by adding a viapoint (see arrow in the attached image). Although, iQue did change the route, the viapoint does not show up in QueTurns. On checking the Edit Via screen, I see that the viapoint 402E is still listed there. Then why won't it show up?

I have also noticed that there are some viapoints that don't show up in QueTurns. Why is that?

[apersson850]

This is because the programmers at Garmin found, that viapoints that are in close vicinity of another turning point (street crossing that's included in QueTurns, for example) mess up the guidance done by the iQue. So they "solved" the problem by not displaying viapoints if they are too close to such a turning point.

How far "too close" is, I don't know.