So I have a question... my company has a different license structure than yours.
I'll attach my license structure below so you can see -- this is a screenshot from the API explorer. I feel as though your light and standard licenses equate to our Work and Plan licenses.
When we filter for our licenses we use "License = Work" (or plan), and when we switch to text mode, the back end textmode is "licenseType=T" (or F)
I'm wondering what your backend text mode looks like -- would you mind sharing how your filter looks? Otherwise it gets quite difficult for us to help support each other.