Questions drawn from a question pool appear in random order on a test form

When drawn questions from a question pool (using the Copy from Question Pool option from the pull down menu), the questions appear on the test form in a different order from the question pool. To recreate the bug, create a question pool with some questions, then create a test using the "Copy from Question Pool option", say choose 4 or 5, the questions appear on the test form in a different order from the question pool, ie, 1-4 in the question pool might appear 1, 2, 4, 3. I tried different ways. For example, I selected two questions, seem to be in right order. However, when I added two more questions from the pool, the orders on the test form changed. The ordering seems random. A workaround is to manually reorder the test form once all the questions are drawn. But it should start with the correct order, unless order change is necessary.