In plain language
Repeated navigation must appear in the same order on every page.
Who it affects
People who navigate by memory and routine, including many with cognitive or low-vision needs.
How to check
Compare header/footer/menu order across several pages: same items, same order. Worked example — A food-delivery app's order-tracking screen: check breadcrumb presence/order on sibling pages: present on some, absent or reordered on others, fails.
Common misconception
Reordering navigation for one page “because it makes more sense there” breaks the pattern users rely on. Consistency matters more than any single page's ideal order. Real example: on a food delivery app's restaurant menu, navigation links appear in a different order on different pages — users who memorize the layout keep getting lost.