Testing submission problem

Community Novice

Hello Good People,


I'm having an issue with a Canvas test.  Two students' tests remain "open" though it is well past the "due" and "until " ti submission time inputted in the test details. All the other students' tests closed at the appropriate time. I have failed in my attempts to add a time extension and force the test to close and submit. The test was made in the classic format. I would greatly appreciate any advice or input from the community.