Hi @mhaynes, I am sorry you are experiencing problems with New Quizzes settings. You can always enable the setting to allow students to see the quiz results after taking the test during your class period and toggle the setting back off after the exam has ended.
New Quizzes to Classic Quizzes - we have instructors who had a need to revert exams created in New Quizzes back to Classic Quizzes. Be advised that not all question types are compatible with Classic Quizzes (Hotspot, Categorization etc.). Start the process by exporting the test in New Quizzes. Go to the import page in the course and import the file as a QTI.zip file. After the import, check the Questions tab in the new Classic Quiz. If you do not see your questions or you are missing questions, check the Question Banks page. The import process can sometimes move the questions to a question bank. Click on Find Questions on the Questions tab to insert any missing questions.
I hope the above information will be helpful to you.