Yes I have the same problem with X20 GPS, on roundabout it is always direction of navigation pointed wrong way when taking a curve.
What happens is that, when there we take a curve or U[turn or road bend, the full map stats moving in the direction of the curve and when suddenly there is a second cuve , we lose track of map orientation.
If the cursor remains centered and pointing in Up direction it will be better.
Using Igo Primo 9.6.13...... Please correct it soon. amunir