If you are modifying a graph that is used by program project diagram, you may need to update the program diagram after these modifications are made. For example, if you add one more kernel with corresponding inputs and outputs to your graph diagram, you have to update the program diagram and connect additional inlets and outlets to new inputs and outputs. This is because the program diagram is still using references to the graph information it used before you have modified the related graph.
In order to update the process in the program diagram, perform the following steps: