Affinity Publisher for Windows 1.8.0.584, Windows 10
If a linked image (created with Affinity Photo) is modified within Affinity Publisher, the changes are not saved - everything works fine if the image is embedded.
Steps to reproduce:
create a simple image using Affinity Photo, save the image
start Affinity Publisher and create a new document
add the image to the document --> a linked resource is created
in the layers panel double click on the icon -->