I created a simple form and workflow to test the GetRunningWorkflowTasksForCurrentUser WS.
the FileUrl is set from workflow
the issue is when I click the "getTaskID" button (pass fileurl to GetRunningWorkflowTasksForCurrentUser WS to get taskID)
the repeat table area will disappear. no result return. also no error return.
if I open the form in Infopath
click "getTaskID" button , the taskid will be returned into the repeat table.