no due date error WITH due date

[JustineHampton]

A teacher's grade sync from Canvas to Aspire is resulting in an error saying that the assignment was skipped due to "no due date was set". Yet, in each of those assignments there is a due date.

I have had issues with these same assignments because it's been assigned to some students in the section, but not all. when I change that, I get this error. For context these are assignments created from an online textbook through Carnegie's platform that connects to Canvas (very poorly). 

[melodyc_lam]

@JustineHampton Can you check if in the assignment, there's a due date for 'everyone else'? I know its weird, since if you add all the students, it should mean that 'everyone else' is empty, but the SIS integration requires that ALL students have a due date assigned to them.