If you add questions to a quiz using the ‘New Question Group’ function, then changes in the question bank will be reflected in the quiz.
However, if you add a question using the ‘Find Questions’ function, this creates a copy of the question from the bank in its current form. Any changes to the question in the bank will NOT be reflected in the quiz from that point on.
Canvas has a Quizzes feature that can be used for formative assessment. However, until we pilot the use of Canvas Quizzes for summative assessment, we advise that you continue to use your current method. If using Questionmark, you can provide the following link from your Canvas course: https://ondemand.questionmark.eu/home/610094/saml_login
Canvas Guide: How do I create a quiz with individual questions?