Set process variable, undefined variable #items on line 1044 of maestro.module

Set process variable is not able to set if the value of a field is None.
field_view_field('node',$node_entity[$nid],$field_name); returns an empty array if the field value is none.

To get around this I had content_type_task_maestro_set_process_variable_logic() return a -1. I would have it return 0 but then the set process variable would not complete.
Here is the code I used after line 1043:

  if(!isset($data['#items'][0][$field_data_column])) {
    return -1;
  }

Here is my work flow maybe there is a better way to accomplish this:

This is not ideal because I would really like it to return 0 as I am checking if the variable is > 0 in the next if step.