Post Attendace not showing up

Hello, I am having an issue with the POST Attendance call. We send several attendance records and only a select few are showing up in BB. Yet we get a 200 Success on all of them. Below is what I've sent in a couple examples.

Worked:

{"student_user_id":6428767,"begin_date":"2021-10-14T00:00:00-04:00","end_date":"2021-10-14T00:00:00-04:00","start_time":"00:00:00","end_time":"23:59:00","excuse_type_id":6406,"excuse_comment":"Awaiting covid results"}

Did not show up:

{"student_user_id":3714977,"begin_date":"2021-10-14T00:00:00-04:00","end_date":"2021-10-14T00:00:00-04:00","start_time":"00:00:00","end_time":"23:59:00","excuse_type_id":6406,"excuse_comment":""}

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