I’ve tried deactivating all plugins (except NGG gallery, smart search and GA) and the result didn’t change. The theme is standard twentytwentythree so next I tried Neve theme which is also block based, and the result was the same.
Thanks for that Harald, but I’ve corrected it and still have the problem. The page at http://clht.org.uk/Search-for-photos shows the problem – I cannot get the styling to display anything other a thick black line.
