Archon users at Colorado State University Pueblo have discovered that Archon version 3.21 rev-1 when used on a server with PHP version 5.4.3 or higher will not display collection content children on the public side beyond the top most level. For instance, a collection that has the following structure:
Series 1/Sub-series 1/Folder 1/Item 1
Series 2/Sub-series 1/Item 1
Will only show Series 1 and 2 to the public, not any of the child sub-series, folders and items in that collection. On the admin side all children are displayed fine.
They downgraded their version of PHP to 5.3.13 and now all the collection content is displaying correctly. See the following postviewtopic.php?f=5&t=1310&p=3661#p3661