update：更新

src/components/layout-element/interactive/app-preset-button/app-preset-button.vue

@@ -195,6 +195,8 @@ export default class AppPresetButton extends Vue {
         const layoutModel = this.layoutModelDetails[this.itemName];
         if(layoutModel){
             return layoutModel.iconAlign || 'LEFT';
+        }else{
+            return 'LEFT';
         }
     }