Index: src/libchcore/TTask.cpp
===================================================================
diff -u -N -rfb881f503caba7b2ade610ba7fc1a36a5aea5d01 -ref05af11e2a9b7964a91dffdd9f76e85a690b887
--- src/libchcore/TTask.cpp	(.../TTask.cpp)	(revision fb881f503caba7b2ade610ba7fc1a36a5aea5d01)
+++ src/libchcore/TTask.cpp	(.../TTask.cpp)	(revision ef05af11e2a9b7964a91dffdd9f76e85a690b887)
@@ -295,14 +295,23 @@
 	bool TTask::RetryProcessing()
 	{
 		// retry used to auto-resume, after loading
-		switch (GetTaskState())
+		ETaskCurrentState eState = GetTaskState();
+		switch (eState)
 		{
 		case eTaskState_Paused:
 		case eTaskState_Finished:
 		case eTaskState_Cancelled:
 		case eTaskState_LoadError:
 			return false;
 
+		case eTaskState_Processing:
+		case eTaskState_Waiting:
+			{
+				if(IsRunning())
+					return false;
+				//else go to default clause
+			}
+
 		default:
 			BeginProcessing();
 			return true;