You are in SCM APO EhP3.
You use the Detailed Scheduling Planning Board in APO.
You have a resource utilization / capacity consumption / tank level /(…) chart to be displayed.
The curves on the chart do NOT appear.
This is an known issue. The issue should be solved with SAP GUI 730 Patch Level 12 / SAP GUI 740 Patch Level 02.
For more information, please visit note 2103679 – SAP GUI BARCHART: Curves are not displayed in chart.