It is important to make sure that more specific rules with more complex triggering criteria are given high priority to prevent them from being blocked by more generic items.
If you have a home page dynamic page, or dynamic pages that are not constrained by the At this exact location setting in the Add/Modify Location dialog, make sure that they are prioritized near the bottom of the folder list. They might block other pages from displaying.
Make sure that rules with more complex triggering criteria are placed higher on the list. For example, you should place a dynamic page set to the location Cameras > Digital Cameras > Canon higher than a dynamic page set to the location Cameras > Digital Cameras.
Other folders might affect the results of the folder that you are viewing.