try that

apps/datahub-e2e/src/e2e/search.cy.ts

@@ -87,8 +87,8 @@ describe('search', () => {
     })
 
     // If logged in and favorites exist
-    describe('User logged in', () => {
-      before(() => {
+    describe.only('User logged in', () => {
+      beforeEach(() => {
         cy.login()
         cy.visit('/search')
         cy.intercept('PUT', '**/geonetwork/srv/api/userselections/**').as(
@@ -99,9 +99,9 @@ describe('search', () => {
           .eq(1)
           .find('mel-datahub-heart-toggle')
           .first()
+          .find('mel-datahub-button')
+          .first()
           .click()
-        cy.wait('@addFavoriteRequest').its('response.statusCode').should('eq', 201)
-        cy.visit('/search')
       })
 
       describe('favorite interactions', () => {
@@ -135,7 +135,7 @@ describe('search', () => {
             cy.get('mel-datahub-results-card-favorite').as('favoriteCard')
           })  
           it('should open the dataset page in the same application on click', () => {
-            cy.get('@firstResult').find('h1').click()
+            cy.get('@favoriteCard').find('h1').click()
             cy.url().should('include', 'dataset')
             cy.get('mel-datahub-dataset-page').should('be.visible')
           })