PeopleSoft 9.2: How do we clear/untag records tagged in a Group not found in AR?

We are attempting to create a Maintenance Worksheet. We entered the items necessary to build the worksheet; however, when built, these items were not selected. When we attempted to manually select the items, we received the message ‘Items Already Tagged in Another Group’. View Detail reveals that they are in a Pending Group that we had already deleted. We are unable to find this Pending Group in AR Pending Items or AR Posting Errors. They can be viewed in the PENDING_ITEM, PENDING_ITEM_FS, and PENDING_DST tables. The records can be found by Group ID, and they are flagged with an ‘N’