Express Classroom files not allowing edits

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Community Expert ,

Mac OS 13.4 in Chrome Version 120.0.6099.109

I have several students working on an assignment I created with Express Classrooms, who are unable to access the file they began working on last week. A few students had clicked "Turn In" but would like to make changes to their file. Returning the file to them does not open editing access again. A few other students assure me they have NOT clicked Turn In, and their access is simply disabled.

As you can see from the screenshot below, there are no edit tools even available. The interface looks as though it's been set to a "Read-Only" setting for the instructor to grade it.

Grey boxes included to hide personally identifying information/photos of the student that this project belongs to.