improvement

lib/modules/asset_tracking/map_tracking_page.dart

@@ -141,10 +141,13 @@ class _MapTrackingPageState extends State<MapTrackingPage> {
       _lastFittedCoordinatesKey = null; // force re-fit even if the same building is viewed again
     });
 
-    Utils.showLoading(context);
+    // Only show the loader when zones must be fetched; if they are cached the call completes
+    // before the (post-frame) dialog appears, and the dialog would never be dismissed.
+    final needsNetwork = provider.zonesList.isEmpty;
+    if (needsNetwork) Utils.showLoading(context);
     await provider.getZoneFromPenguin();
     if (!mounted) return;
-    Utils.hideLoading(context);
+    if (needsNetwork) Utils.hideLoading(context);
     // Camera fit happens in the building-outline Selector once the polygon is rendered.
   }
 
@@ -621,6 +624,8 @@ class _MapTrackingPageState extends State<MapTrackingPage> {
                           onSelect: (value) {
                             if (value != null) {
                               assetProvider.selectedSite = value;
+                              assetProvider.selectedBuilding = null;
+                              assetProvider.selectedFloor = null;
                               getPenguinBuildings(value.id!);
                             }
                           },