This is detailed within the Help concerning the fact that DRC ignores spacing rule violations for the first segment of connected nets leaving from the star point pad
Yes I know.... but it happens a very strange thing: if 2 tracks that join starpoint starts from a segment of the track an error is found (?!) , otherwise if they start from a pad or a via than there is no error . Why?
The DRC ignores the first segment from the starpoint to the first corner, at the corner DRC is back in action. So that I understand completely your points, please create a simple example design and send through to support.