In my ExB application, I am trying to inherit bookmarks from the web map, to draw the reader's attention to some differences between diachronic cartography displayed via the swipe widget in some points of the map. In my app, I have 3 web maps that concur in the map but the "Show bookmarks from web map" option does not give me the possibility to choose from which webmap to inherit bookmarks. The result is that, randomly, the app correctly displays the bookmarks of a webmap, other times it fails to do so. Is it a problem of the application?