using Adobe InDesign CC 13.1
& since a couple of months ago we're finding that when we collect for artwork some of the images are damaged.
The image files show in the links folder but have Zero byte size
This only happens when we're collecting using our Network Attached Storage
Sorry about the inconvenience caused. This generally happens when images or the file is saved to some Network Drive/ Shared Folder on System /External HDD. I would suggest to try with a new file and with a sample picture and try to package it on Desktop and check the image size.