Index: src/org/openstreetmap/josm/gui/layer/geoimage/ImageViewerDialog.java
===================================================================
--- src/org/openstreetmap/josm/gui/layer/geoimage/ImageViewerDialog.java	(revision 18934)
+++ src/org/openstreetmap/josm/gui/layer/geoimage/ImageViewerDialog.java	(working copy)
@@ -914,6 +914,7 @@
                     .filter(IGeoImageLayer.class::isInstance).map(IGeoImageLayer.class::cast).collect(Collectors.toList());
         if (!Config.getPref().getBoolean("geoimage.viewer.show.tabs", true)) {
             updateRequired = true;
+            layers.removeAll();
             // Clear the selected images in other geoimage layers
             this.getImageTabs().map(m -> m.layer).filter(IGeoImageLayer.class::isInstance).map(IGeoImageLayer.class::cast)
                     .filter(l -> !Objects.equals(entries, l.getSelection()))