Changes do apply left-right splitting before uploading too

Models/ThemeConfig/LayerConfig.ts

@@ -297,4 +297,8 @@ export default class LayerConfig extends WithContextLoader{
 
         return allIcons;
     }
+    
+    public isLeftRightSensitive() : boolean{
+        return this.lineRendering.some(lr => lr.leftRightSensitive)
+    }
 }

Models/ThemeConfig/LayoutConfig.ts

@@ -279,5 +279,9 @@ export default class LayoutConfig {
         })
         return new LayoutConfig(JSON.parse(originalJson), false, "Layout rewriting")
     }
+    
+    public isLeftRightSensitive(){
+        return this.layers.some(l => l.isLeftRightSensitive())
+    }
 
 }