SFC Filter Problems

I am trying to filter a set of SFC’s in a project. Just using the system.sfc.getRunningCharts() works but returns all the chart that are running on the gateway. I wan’t to filter them by project specific charts. I am trying to put the path into the argument but I don’t get any data returned. system.sfc.getRunningCharts(“FolderName/FolderName”) Under the last folder I have 4 charts running. Do I need to make the path chart specific(system.sfc.getRunningCharts(“FolderName/FolderName/myChart”)? or does this function have the ability to get all the charts in that specific folder?