A custom sublist is created using a saved search in the item record. In the available filter region, the item is selected as a filter so that when an item record is opened, the sublist shows the values for that item. However, the sublist in the item record does not show any values.
This is because the item saved search has three filters in the available filter and the first filter was for Subsidiary. This needs to be changed to Item so that the search filters are based on the item record first. If the item is placed as the first filter, the sublist values show correctly for the items.