When the ScrollViewer of the GridView portion of the control is not shown, exporting the contents of the control causes overlapping
Removing columns in run time in specific scenario causes the issue.
GanttView: Memory leak when hovering a cell from the GridVeiw part
When the VisibleRange of the RadGanttView is not wide enough, when ScrollingIntoView of a selected GanttTask that has start time close to the beginning of the VisibleRange - a white blank area is drawn to so that this GanttTask can be aligned in the center. Available in LIB version 2016.1.314, it will be also available in the 2016 Q2 Release.
If the RadGanttView is added to a RadPane of a RadDocking control and you drag a task from its GridView part its borders the dragged task is removed from the control. Available in LIB version 2016.2.711, it will be also available in the 2016 R3 release.