Thank you for responding. I rechecked my two master pages (one for topics, the other for popup topics) and they are correctly associated to the test topic and associated pop-up topics. I also rechecked the layout properties before I regenerated and the breadcrumbs option seen in "navigation" are not activated/toggled on. What I get now is nothing, no breadcrumbs on any topics. I either get an "all" by using the layout option, or nothing when I use the two different master pages in RH HTML 9.
I wonder if there might be a problem with using image maps inside the topics where the image is mapped to another topic with a second level of topics that are popups. These popup topic files have the 'htm' file extension and are associated correctly to the popup master page. I just wondered if RH 9 would have problems if it had to go through the image map to see the next topic before it hit the popup htm files. It worked before, but somehow I have interfered with what was working. I do not see any unique user defined variables