I have a picture frame containing a placed jpeg.
After replacing the image with an Affinity Photo file using the resource manager
– the picture frame doesn’t respond to ‘Picture Frame Properities‘ under the ‘Properties‘ button in the context tool bar;
– the ‘Size Picture Frame to Content’ button is greyed out;
– the picture frame shows the two diagonal cross lines like an empty picture frame.
Having replaced the image with an Affinity Photo file using the ‘Replace Image’ button in the context tool bar the picture frame behaves as expected.
Using the resource manager to replace the image with another jpeg of tiff doesn't result in this behaviour.
AfPub 1.8.3 and beta 1.8.4.651, MacOS Mojave