The OOTB Jasper report Capacity vs Demand by Resource not populating Resource Managers when the check box is checked.
It is DWH based report, what conditions or access it needs ?
Could you check if resource_manager is stored in DWH schema (DWH_RES_RESOURCE table) ?
Run the following query in DWH schema. It returns resource and his manager.
SELECT USER_NAME,RESOURCE_MANAGER FROM DWH_RES_RESOURCE;
If it returns wrong result, you may need to run "Load Data Warehouse(Full load)" job.