How do I work on past-due assessments that are still available?

[BTravis7387]

Hello,

My professor has assignments set-up as assessments which should, in theory, allow students to work on the assignment past due until the midterm exam, but with the due date. If I am working on an assignment right up until the due date, it automatically submits and I am unable to work forward on the assignment unless via ungraded practice, despite Canvas saying that the assignment should be available.

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Screenshot provided: https://imgur.com/a/Z6W1mdm

Thanks for the help!