I have a dashboard with 11 serial charts. Each serial chart contains 16 series representing river flows for each day of a given year (2009 to current). My category axis is a Date field with 366 rows (leap year) from January 1st to December 31st. If each series is displayed with line type, my category axis displays the full extent of data. If at least one series is changed from line to column, my category axis is shortened to display only part of the year. No matter which series is changed to a column, the category axis always cuts off all dates after May 5th. If all series are changed back to line type, the category axis displays the full extent of data.