Wrong navpoint icon displayed

I have a track where the same location has a different navpoint direction for two track points - #15 turn right (outward) and #1737 turn left (return). When I edit track point #15 the turn right icon is correctly displayed but when I edit track point #1737 the same turn right icon displayed instead of a turn left icon.

The TCX file has the correct <PointType>:

#15

<CoursePoint>

<Name>turn right</Name>

<Time>1970-01-01T00:28:45Z</Time>

<Position>

<LatitudeDegrees>-42.979476</LatitudeDegrees>

<LongitudeDegrees>147.193846</LongitudeDegrees>

</Position>

<AltitudeMeters>159.11</AltitudeMeters>

<PointType>Right</PointType>

</CoursePoint>

#1737

<CoursePoint>

<Name>turn left</Name>

<Time>1970-03-25T12:05:50Z</Time>

<Position>

<LatitudeDegrees>-42.979476</LatitudeDegrees>

<LongitudeDegrees>147.193846</LongitudeDegrees>

</Position>

<AltitudeMeters>159.11</AltitudeMeters>

<PointType>Left</PointType>

</CoursePoint>