Erik Kostson
Ansys Employee
Ansys employees are not allowed to open any attachments, and also provide in depth support for customised act scripts.

What we would recommend is to see what is happening when different parts are executed. We can do that by printing out messages at different parts of the code in order to see if things work as intended or not.

So we can use : ExtAPI.Log.WriteMessage('Problem part 1 here'), to do that at different parts of the code.
Also, to be clear, I have seen making a parameter out of the largest VM stress say in the model, but we could not have parameters for every single node, so you would need to send the largest calculated result value to the parameter that is going to be used by DesignXplorer and say the resp. surf..
Hope this helps you debug

Erik