Can expiration date be removed from completed assignments?

Summary:

I used the expiration date when creating mass assignments for an annual refresher training, and now all the completed assignments are shown as expired. Is there a way to use mass action to fix this issue? Please HELP!

Content (please ensure you mask any confidential information):

I used last year's course and added a new assignment with a one-year expiration date. However, all the courses have expired completion on 4/5/24.

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