Quiz timer doesn't work properly when multiple quizzes draw questions from the same question bank

It sounds like you’ve set everything up correctly, and what you’re seeing is most likely a limitation in how the system handles timers when multiple quizzes pull from the same question bank. Many LMS or authoring tools tend to “link” quiz properties to the shared bank, so the longest duration assigned to any quiz using that bank becomes the default for all.

Your workaround of creating separate banks per quiz will definitely fix the issue, but I agree it’s not efficient for maintenance. If the platform doesn’t offer independent timer settings for quizzes sharing a bank, you may want to raise this as a potential bug or feature request with the support team — especially if independent timing is part of your instructional design.

In the meantime, another option (if the tool supports it) could be duplicating the bank within the authoring tool rather than manually recreating it, which might at least reduce the workload of keeping them synced.