src/services/inventoryService.ts

@@ -1014,12 +1014,14 @@ export const addCustomization = (
     customizationName: string,
     inventoryChanges: IInventoryChanges = {}
 ): IInventoryChanges => {
+    if (!inventory.FlavourItems.find(x => x.ItemType == customizationName)) {
         const flavourItemIndex = inventory.FlavourItems.push({ ItemType: customizationName }) - 1;
         // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
         inventoryChanges.FlavourItems ??= [];
         (inventoryChanges.FlavourItems as IFlavourItem[]).push(
             inventory.FlavourItems[flavourItemIndex].toJSON<IFlavourItem>()
         );
+    }
     return inventoryChanges;
 };