Why is AWI downloading one file for an order that has multiple files?

If a custom file name pattern has been added to the rule in AWI, and you are seeing one file downloaded for the order, when the order contains more than one production file, then it is likely that the custom filename pattern is causing the files to be overwritten with each succesive download.
The {i} filename reference tag should be added to custom filename patterns used on the rule if the order contains more than one file that is being saved by AWI.
{i} which when added to the filename will keep the filename from being overwritten with the same name when multiple files are in an order.