fix regression #12651

src/assets/js/map-util.js

@@ -300,6 +300,9 @@ const mapUtil = {
       const colorStyle = featureType.colors_style.colors[currentValue];
       return colorStyle ? colorStyle : featureType.color
     }
+    else{
+      return featureType.color;
+    }
   },
 
   addVectorTileLayer: function (url, project_slug, featureTypes, form_filters) {