I have common exams that pull from test banks. Both exams are in canvas, but when I imported the exam into the second class it did not pull in the test banks.
Question banks can be bookmarked which allows them to be accessed from any of your courses. Here is a quick guide How do I bookmark a question bank in a course?
I'm not sure that will solve the problem you describe from importing an exam, but take a look and see if it helps. Perhaps if you bookmark the question bank before importing the exam it will help.
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