Index: src/libchcore/TTask.cpp
===================================================================
diff -u -N -r8592d6dcef30c8e4967ca4dcee37c1ca52afbf16 -r3b320bc86d4e808c2f6a70c10bd5c9936102b301
--- src/libchcore/TTask.cpp	(.../TTask.cpp)	(revision 8592d6dcef30c8e4967ca4dcee37c1ca52afbf16)
+++ src/libchcore/TTask.cpp	(.../TTask.cpp)	(revision 3b320bc86d4e808c2f6a70c10bd5c9936102b301)
@@ -526,7 +526,10 @@
 			// determine when to scan directories
 			bool bReadTasksSize = GetTaskPropValue<eTO_ScanDirectoriesBeforeBlocking>(m_tConfiguration);
 
-			// prepare context for subtasks
+			// initialize subtask array
+			m_tSubTasksArray.InitBeforeExec();
+
+			 // exec the estimation subtasks
 			if (bReadTasksSize)
 				eResult = m_tSubTasksArray.Execute(spFeedbackHandler, true);