bugfix for virt channel: clear invalid state

mission/com/VirtualChannel.cpp

@@ -74,5 +74,7 @@ ReturnValue_t VirtualChannel::handleWriteCompletionSynchronously(size_t& written
       return result;
     }
   }
-  return returnvalue::FAILED;
+  // Timeout. Cancel the transfer
+  cancelTransfer();
+  return TIMEOUT;
 }