Hi there, @d_a_low ...
Unfortunately, the short answer is...you can't. You can ask your students to re-submit their assignments, though, if need be. Students will see the most recently submission on their end, but you will always have access to all submissions of the assignment per student.
Sorry that I don't have better news for you on this, but I hope it has helped to answer your question. Be well, and stay safe.
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