XnView Software

I am also having an issue writing category data into IPTC data after the fact. The only method which works for me is to select the photos and then uncheck and recheck the categories. However, this method is extremely time consuming.

I noticed almost all the photos from one of my trips (all in one folder) are missing the categories assigned to them. This is in the Browser Folder view. The Categories pane with the tree selection of categories shows all my categories but none are assigned to the photos. The Category Sets pane also ...