When using the Plan and Profile Generator command and there is a vertical shift in the profile due to the elevation change, the profile is only displayed about half-way the elevation range. Profiles are not displayed for the full range of elevations.
Within the Plan and Profile Generator command make note of the profile preference that is being applied. Select Evaluation>Profiles>Create Profiles and load the preference used within the Plan and Profile Generator command, Profile Controls tab. Select Controls from the Create Profiles leaf and check the Bottom Window Clearance; this option adds additional space at the top and bottom of the profile. Adjust the Bottom Window Clearance to lower clearance.