still not able to refine location

lib/widgets/camera_tag_sheet.dart

@@ -20,14 +20,16 @@ class CameraTagSheet extends StatelessWidget {
     void _openEditSheet() {
       Navigator.pop(context); // Close this sheet first
       appState.startEditSession(node);
-      final session = appState.editSession!;
       
-      // Show the edit sheet
-      showModalBottomSheet(
-        context: context,
-        builder: (_) => EditCameraSheet(session: session),
-        showDragHandle: true,
-      );
+      // Show the edit sheet using a post-frame callback to ensure proper context
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        final session = appState.editSession!;
+        showModalBottomSheet(
+          context: context,
+          builder: (_) => EditCameraSheet(session: session),
+          showDragHandle: true,
+        );
+      });
     }
 
     return SafeArea(

lib/widgets/map/direction_cones.dart

@@ -13,6 +13,7 @@ class DirectionConesBuilder {
     required List<OsmCameraNode> cameras,
     required double zoom,
     AddCameraSession? session,
+    EditCameraSession? editSession,
   }) {
     final overlays = <Polygon>[];
     
@@ -22,13 +23,25 @@ class DirectionConesBuilder {
         session.target!, 
         session.directionDegrees, 
         zoom,
+        isSession: true,
       ));
     }
     
-    // Add cones for cameras with direction
+    // Add edit session cone if in edit-camera mode
+    if (editSession != null) {
+      overlays.add(_buildCone(
+        editSession.target, 
+        editSession.directionDegrees, 
+        zoom,
+        isSession: true,
+      ));
+    }
+    
+    // Add cones for cameras with direction (but exclude camera being edited)
     overlays.addAll(
       cameras
-        .where(_isValidCameraWithDirection)
+        .where((n) => _isValidCameraWithDirection(n) && 
+                     (editSession == null || n.id != editSession.originalNode.id))
         .map((n) => _buildCone(
           n.coord, 
           n.directionDeg!, 

lib/widgets/map_view.dart

@@ -309,6 +309,7 @@ class MapViewState extends State<MapView> {
           cameras: cameras,
           zoom: zoom,
           session: session,
+          editSession: editSession,
         );
 
         return Stack(