.

exp_scenario/module/control/vlayer.lua

@@ -159,6 +159,8 @@ allowed_items["landfill"] = {
 local vlayer_data = {
 }
 
+default_surface(game.surfaces["nauvis"].index)
+
 Storage.register(vlayer_data, function(tbl)
     vlayer_data = tbl
 end)
@@ -698,35 +700,41 @@ local function handle_energy_interfaces()
     end
 end
 
+local function default_surface(surface_index)
+    if vlayer_data[surface_index] then
+        return
+    end
+
+    vlayer_data[surface_index] = {
+        interfaces = {
+            energy = {},
+            circuit = {},
+            storage_input = {},
+            storage_output = {},
+        },
+        properties = {
+            total_surface_area = 0,
+            used_surface_area = 0,
+            total_production = 0,
+            production = 0,
+            input_limit = 0,
+            output_limit = 0,
+            capacity = 0,
+        },
+        storage = {
+            items = {},
+            unallocated = {},
+            energy = 0,
+        }
+    }
+end
+
 local function update_surface(event)
     -- global surface will have its data point to the main surface
     if config.global_surface then
         return
     end
-    if not vlayer_data[event.surface_index] then
-        vlayer_data[event.surface_index] = {
-            interfaces = {
-                energy = {},
-                circuit = {},
-                storage_input = {},
-                storage_output = {},
-            },
-            properties = {
-                total_surface_area = 0,
-                used_surface_area = 0,
-                total_production = 0,
-                production = 0,
-                input_limit = 0,
-                output_limit = 0,
-                capacity = 0,
-            },
-            storage = {
-                items = {},
-                unallocated = {},
-                energy = 0,
-            }
-        }
-    end
+    default_surface(event.surface_index)
 end
 
 --- Move items between the interfaces and storage