There is no error for this condition. However, a review of the SharePoint Archiving report will show the item in the Custom List or Task as archived as follows:
http://sharepointsrv.domain.local/Lists/Custom%20EV%20List/4_.000(Custom EV List FW4) V1.0 2/14/2013 7:45:47 PM 105120 SharePoint Policy PDF ARCHIVE Archived (Notice the size of the file is only 105 KB)
Additionally, review of a Dtrace of the SharePoint Archiving Task will show that the item matched the Rule in the SharePoint Policy as follows:
{SHAREPOINTPOLICY.EN_US} Item: Custom EV List FW4 matched rule: PDF, rule type: ARCHIVE
Cause
This behavior is as designed as the settings in the File tab only apply to the following relevant libraries:
The settings in the File tab settings do not apply to the following Content Sources :
The designed behavior is such that Announcements, Blogs, Contacts, Custom List, Discussion Board, Issue Tracking, Links, Tasks, and Wiki Page Libraries will be processed according to the Rule Type in the General tab regardless of attached file content when selected as a targeted content source. (i.e. If the Tasks content source is selected with a Rule Type of Archive the Task will be archived whether or not there is an attachment in the Task and in spite of any settings in the File tab. The archiving task is simply targeting a content source of Tasks)
The product is working as designed as the Sharepoint archiving task applies File attributes filters only to the following content source types:
The product is working as designed as the Sharepoint archiving task does not apply File attributes filters to the following content source types: