Assignments graded and returned in Classroom can show the state as TURNED_IN or CREATED instead of RETURNED with Google Classroom API

Question

So i Have a Google Sheet that pulls the grades from my Google Classroom. For some reason one of the assignments has not been pulling the correct information. Instead of getting a state of RETURNED I get either TURNED_IN or CREATED. The assigments were graded and returned through Google Classroom. So far I have only noticed this problem with only one assignment.

To pull the grades I use the Google Classroom API Classroom .Courses .CourseWork .StudentSubmissions .list(dSCourseId, '-',{userId : id.toString()}) .studentSubmissions I do this for each student enrolled in the Google Classroom, and it works fine for all but one assignment.