Listing the children of a page's parent can create a loop.
In a list component (e.g. List
Builder), it is easy to simply list the child pages of a
specific page. But if the specified page is the PARENT of the page
on which the list is placed, and the parent page has a similar list
of its own child pages, this will create a neverending loop. In
effect, the lists auto-list each other, and the UBCMS auto-lists
Avoid auto-listing the content of the page's parent in a list