diff --git a/ui/src/app/metadata/configuration/component/property/array-property.component.html b/ui/src/app/metadata/configuration/component/property/array-property.component.html
index 28777731d..9a5d1648e 100644
--- a/ui/src/app/metadata/configuration/component/property/array-property.component.html
+++ b/ui/src/app/metadata/configuration/component/property/array-property.component.html
@@ -36,7 +36,7 @@
         <div *ngIf="property.widget && property.widget.dataUrl">
             <div *ngFor="let attr of attributeList$ | async"
                 class="d-flex justify-content-start border-bottom border-light"
-                [ngClass]="{'bg-diff': isDifferent(attr.key)}">
+                [ngClass]="{'bg-diff': isDifferent(attr.key, property.value || [])}">
                 <span class="p-2" role="term" [translate]="attr.label" [ngStyle]="{'width': width}">{{ attr.label }}</span>
                 <div *ngFor="let v of property.value"
                     class="py-2"
diff --git a/ui/src/app/metadata/configuration/component/property/array-property.component.spec.ts b/ui/src/app/metadata/configuration/component/property/array-property.component.spec.ts
index c0dbcbb16..6260a4e50 100644
--- a/ui/src/app/metadata/configuration/component/property/array-property.component.spec.ts
+++ b/ui/src/app/metadata/configuration/component/property/array-property.component.spec.ts
@@ -67,6 +67,17 @@ describe('Array Property Component', () => {
         expect(app).toBeTruthy();
     }));
 
+    describe('isDifferent method', () => {
+        it('should return true if the value is different between any of the lists', () => {
+            expect(app.isDifferent('foo', [['foo', 'bar', 'baz'], ['bar', 'baz']])).toBe(true);
+            expect(app.isDifferent('bar', [['bar'], null])).toBe(true);
+        });
+
+        it('should return false if the list of values is the same', () => {
+            expect(app.isDifferent('foo', [['foo', 'baz'], ['foo', 'bar']])).toBe(false);
+        });
+    });
+
     describe('attributeList$ getter', () => {
         it('should return an empty list when no data or dataUrl is set', () => {
             app.attributeList$.subscribe((list) => {
diff --git a/ui/src/app/metadata/configuration/component/property/array-property.component.ts b/ui/src/app/metadata/configuration/component/property/array-property.component.ts
index f166aa155..7a042fa46 100644
--- a/ui/src/app/metadata/configuration/component/property/array-property.component.ts
+++ b/ui/src/app/metadata/configuration/component/property/array-property.component.ts
@@ -33,8 +33,7 @@ export class ArrayPropertyComponent extends ConfigurationPropertyComponent imple
         return UriValidator.isUri(str);
     }
 
-    isDifferent(key: string): boolean {
-        const model = this.property.value || [];
+    isDifferent(key: string, model: any): boolean {
         return model
             .map((value) => value ? value.indexOf(key) > -1 : false)
             .reduce((current, val) => current !== val ? true : false, false);