diff --git a/src/Umbraco.Infrastructure/Examine/IndexRebuilder.cs b/src/Umbraco.Infrastructure/Examine/IndexRebuilder.cs
index d87241e6f6..56d959d52b 100644
--- a/src/Umbraco.Infrastructure/Examine/IndexRebuilder.cs
+++ b/src/Umbraco.Infrastructure/Examine/IndexRebuilder.cs
@@ -52,8 +52,11 @@ namespace Umbraco.Examine
                 index.CreateIndex(); // clear the index
             }
 
-            //run the populators in parallel against all indexes
-            Parallel.ForEach(_populators, populator => populator.Populate(indexes));
+            // run each populator over the indexes
+            foreach(var populator in _populators)
+            {
+                populator.Populate(indexes);
+            }
         }
 
         /// <summary>
diff --git a/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Members/memberGroups.js b/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Members/memberGroups.js
new file mode 100644
index 0000000000..be9b93134d
--- /dev/null
+++ b/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Members/memberGroups.js
@@ -0,0 +1,32 @@
+context('User Groups', () => {
+
+    beforeEach(() => {
+        cy.umbracoLogin(Cypress.env('username'), Cypress.env('password'));
+    });
+
+    it('Create member group', () => {
+        const name = "Test Group";
+
+        cy.umbracoEnsureMemberGroupNameNotExists(name);
+
+        cy.umbracoSection('member');
+        cy.get('li .umb-tree-root:contains("Members")').should("be.visible");
+
+        cy.umbracoTreeItem("member", ["Member Groups"]).rightclick();
+
+        cy.umbracoContextMenuAction("action-create").click();
+
+        //Type name
+        cy.umbracoEditorHeaderName(name);
+
+        // Save
+        cy.get('.btn-success').click();
+
+        //Assert
+        cy.umbracoSuccessNotification().should('be.visible');
+
+        //Clean up
+        cy.umbracoEnsureMemberGroupNameNotExists(name);
+    });
+
+});
diff --git a/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Members/members.js b/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Members/members.js
new file mode 100644
index 0000000000..aeb4576ccd
--- /dev/null
+++ b/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Members/members.js
@@ -0,0 +1,41 @@
+/// <reference types="Cypress" />
+context('Members', () => {
+
+    beforeEach(() => {
+        cy.umbracoLogin(Cypress.env('username'), Cypress.env('password'));
+    });
+
+    it('Create member', () => {
+        const name = "Alice Bobson";
+        const email = "alice-bobson@acceptancetest.umbraco";
+        const password = "$AUlkoF*St0kgPiyyVEk5iU5JWdN*F7&@OSl5Y4pOofnidfifkBj5Ns2ONv%FzsTl36V1E924Gw97zcuSeT7UwK&qb5l&O9h!d!w";
+
+        cy.umbracoEnsureMemberEmailNotExists(email);
+        cy.umbracoSection('member');
+        cy.get('li .umb-tree-root:contains("Members")').should("be.visible");
+
+        cy.umbracoTreeItem("member", ["Members"]).rightclick();
+
+        cy.umbracoContextMenuAction("action-create").click();
+        cy.get('.menu-label').first().click();
+
+        //Type name
+        cy.umbracoEditorHeaderName(name);
+
+        cy.get('input#_umb_login').clear().type(email);
+        cy.get('input#_umb_email').clear().type(email);
+        cy.get('input#password').clear().type(password);
+        cy.get('input#confirmPassword').clear().type(password);
+
+        // Save
+        cy.get('.btn-success').click();
+
+        //Assert
+        cy.umbracoSuccessNotification().should('be.visible');
+
+        //Clean up
+        cy.umbracoEnsureMemberEmailNotExists(email);
+
+    });
+
+});
diff --git a/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Users/userGroups.ts b/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Users/userGroups.js
similarity index 99%
rename from src/Umbraco.Tests.AcceptanceTest/cypress/integration/Users/userGroups.ts
rename to src/Umbraco.Tests.AcceptanceTest/cypress/integration/Users/userGroups.js
index 905d0fc25c..afef0e7701 100644
--- a/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Users/userGroups.ts
+++ b/src/Umbraco.Tests.AcceptanceTest/cypress/integration/Users/userGroups.js
@@ -1,4 +1,3 @@
-
 context('User Groups', () => {
 
   beforeEach(() => {
diff --git a/src/Umbraco.Tests.AcceptanceTest/package.json b/src/Umbraco.Tests.AcceptanceTest/package.json
index ad125d090a..3b4177ce3f 100644
--- a/src/Umbraco.Tests.AcceptanceTest/package.json
+++ b/src/Umbraco.Tests.AcceptanceTest/package.json
@@ -6,8 +6,8 @@
   "devDependencies": {
     "cross-env": "^7.0.2",
     "ncp": "^2.0.0",
-    "cypress": "^4.6.0",
-    "umbraco-cypress-testhelpers": "1.0.0-beta-39"
+    "cypress": "^4.9.0",
+    "umbraco-cypress-testhelpers": "1.0.0-beta-44"
   },
   "dependencies": {
     "typescript": "^3.9.2"