Exit code from run process in guest not being passed out of workflow

I’ve got a workflow that runs a process in a guest OS, then loops until I get an exit code and I want to pass that exit code back out but it’s not working.

Basically my code looks like:

for (i=0; i < res.length; i++)

   {

                if (res[i].pid==pid)

                {

                                if (res[i].exitCode >= "0" || res[i].exitCode < "0") //not null, checking for null wasn’t working back when I tried

                                {

                                                processComplete=true;

                                                exitCode=res[i].exitCode;

                                }

                }

}

System.log(exitCode)

Works great, I log the exit code

Problem is the output never seems to make it out of the workflow.

I have a couple more elements in my workflow and just before the end, I added a scriptable task, added the output exitCode in order to access it and then went:

System.log(exitCode)

vRO logs “null”

I can’t figure out why everything seems to be ok within one scriptable task then not ok in the next and I lose access to my exit code.