diff --git a/services/static-webserver/client/source/class/osparc/auth/Manager.js b/services/static-webserver/client/source/class/osparc/auth/Manager.js
index e4352999026..6c232fb6075 100644
--- a/services/static-webserver/client/source/class/osparc/auth/Manager.js
+++ b/services/static-webserver/client/source/class/osparc/auth/Manager.js
@@ -244,8 +244,8 @@ qx.Class.define("osparc.auth.Manager", {
       const authData = osparc.auth.Data.getInstance();
       authData.set({
         email: profile["login"],
-        firstName: profile["first_name"],
-        lastName: profile["last_name"],
+        firstName: profile["first_name"] || profile["login"],
+        lastName: profile["last_name"] || "",
         expirationDate: "expirationDate" in profile ? new Date(profile["expirationDate"]) : null
       });
     },
diff --git a/services/static-webserver/client/source/class/osparc/dashboard/CardBase.js b/services/static-webserver/client/source/class/osparc/dashboard/CardBase.js
index c82e0df0c1f..3fa2b73ad42 100644
--- a/services/static-webserver/client/source/class/osparc/dashboard/CardBase.js
+++ b/services/static-webserver/client/source/class/osparc/dashboard/CardBase.js
@@ -577,7 +577,7 @@ qx.Class.define("osparc.dashboard.CardBase", {
     __showBlockedCardFromStatus: function(lockedStatus) {
       const status = lockedStatus["status"];
       const owner = lockedStatus["owner"];
-      let toolTip = osparc.utils.Utils.firstsUp(owner["first_name"], owner["last_name"]);
+      let toolTip = osparc.utils.Utils.firstsUp(owner["first_name"] || this.tr("A user"), owner["last_name"] || "");
       let image = null;
       switch (status) {
         case "CLOSING":
diff --git a/services/static-webserver/client/source/class/osparc/desktop/MainPageHandler.js b/services/static-webserver/client/source/class/osparc/desktop/MainPageHandler.js
index cfaa130d6b0..6576305730e 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/MainPageHandler.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/MainPageHandler.js
@@ -97,7 +97,11 @@ qx.Class.define("osparc.desktop.MainPageHandler", {
         lockedBy = studyData["state"]["locked"]["owner"];
       }
       if (locked && lockedBy["user_id"] !== osparc.auth.Data.getInstance().getUserId()) {
-        const msg = qx.locale.Manager.tr("Study is already open by ") + lockedBy["first_name"];
+        const msg = `${qx.locale.Manager.tr("Study is already open by ")} ${
+          "first_name" in lockedBy && lockedBy["first_name"] != null ?
+            lockedBy["first_name"] :
+            qx.locale.Manager.tr("another user.")
+        }`;
         throw new Error(msg);
       }
       const store = osparc.store.Store.getInstance();
diff --git a/services/static-webserver/client/source/class/osparc/desktop/organizations/MembersList.js b/services/static-webserver/client/source/class/osparc/desktop/organizations/MembersList.js
index 7fe0ab9e55e..c61dff1fc80 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/organizations/MembersList.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/organizations/MembersList.js
@@ -227,7 +227,7 @@ qx.Class.define("osparc.desktop.organizations.MembersList", {
           const membersList = [];
           members.forEach(member => {
             member["thumbnail"] = osparc.utils.Avatar.getUrl(member["login"], 32);
-            member["name"] = osparc.utils.Utils.firstsUp(member["first_name"], member["last_name"]);
+            member["name"] = osparc.utils.Utils.firstsUp(member["first_name"] || member["login"], member["last_name"] || "");
             let options = [];
             if (canIDelete) {
               // admin...
diff --git a/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ClustersPage.js b/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ClustersPage.js
index 7a4df9f8540..1dcf7734485 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ClustersPage.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ClustersPage.js
@@ -292,7 +292,12 @@ qx.Class.define("osparc.desktop.preferences.pages.ClustersPage", {
                     collabObj["login"] = collaborator["description"];
                   } else if (collaborator["collabType"] === 2) {
                     collabObj["thumbnail"] = osparc.utils.Avatar.getUrl(collaborator["login"], 32);
-                    collabObj["name"] = osparc.utils.Utils.firstsUp(collaborator["first_name"], collaborator["last_name"]);
+                    collaborator["name"] = osparc.utils.Utils.firstsUp(
+                      `${"first_name" in collaborator && collaborator["first_name"] != null ?
+                        collaborator["first_name"] : collaborator["login"]}`,
+                      `${"last_name" in collaborator && collaborator["last_name"] ?
+                        collaborator["last_name"] : ""}`
+                    );
                     collabObj["login"] = collaborator["login"];
                   }
                   if (Object.keys(collabObj).length) {
diff --git a/services/static-webserver/client/source/class/osparc/desktop/wallets/MembersList.js b/services/static-webserver/client/source/class/osparc/desktop/wallets/MembersList.js
index b1a1c39f148..2514d68d718 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/wallets/MembersList.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/wallets/MembersList.js
@@ -221,7 +221,12 @@ qx.Class.define("osparc.desktop.wallets.MembersList", {
           const collaborator = osparc.utils.Utils.deepCloneObject(collab);
           if ("first_name" in collaborator) {
             collaborator["thumbnail"] = osparc.utils.Avatar.getUrl(collaborator["login"], 32);
-            collaborator["name"] = osparc.utils.Utils.firstsUp(collaborator["first_name"], collaborator["last_name"]);
+            collaborator["name"] = osparc.utils.Utils.firstsUp(
+              `${"first_name" in collaborator && collaborator["first_name"] != null ?
+                collaborator["first_name"] : collaborator["login"]}`,
+              `${"last_name" in collaborator && collaborator["last_name"] != null ?
+                collaborator["last_name"] : ""}`
+            );
           }
           collaborator["accessRights"] = accessRights;
           let options = [];
diff --git a/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js b/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js
index e23c61a2fab..90ccbd2171a 100644
--- a/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js
+++ b/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js
@@ -24,9 +24,11 @@ qx.Class.define("osparc.filter.CollaboratorToggleButton", {
     });
 
     let label = null;
-    if ("first_name" in collaborator) {
+    if (collaborator["first_name"]) {
       // user
-      label = collaborator["first_name"] + " " + collaborator["last_name"];
+      label = `${collaborator["first_name"]} ${"last_name" in collaborator && collaborator["last_name"] != null ? collaborator["last_name"] : ""}`;
+    } else if ("login" in collaborator) {
+      label = collaborator["login"];
     } else {
       // org
       label = collaborator["label"];
diff --git a/services/static-webserver/client/source/class/osparc/filter/OrganizationMembers.js b/services/static-webserver/client/source/class/osparc/filter/OrganizationMembers.js
index 88fa3865f6d..42e10a8bdb5 100644
--- a/services/static-webserver/client/source/class/osparc/filter/OrganizationMembers.js
+++ b/services/static-webserver/client/source/class/osparc/filter/OrganizationMembers.js
@@ -51,7 +51,7 @@ qx.Class.define("osparc.filter.OrganizationMembers", {
         .then(members => {
           members.sort((a, b) => (a["first_name"] > b["first_name"]) ? 1 : -1);
           members.forEach(member => {
-            const name = osparc.utils.Utils.firstsUp(member["first_name"], member["last_name"]);
+            const name = osparc.utils.Utils.firstsUp(member["first_name"] || member["login"], member["last_name"] || "");
             const bnt = this._addOption(name);
             bnt.uid = member["id"];
           });
diff --git a/services/static-webserver/client/source/class/osparc/filter/OrganizationsAndMembers.js b/services/static-webserver/client/source/class/osparc/filter/OrganizationsAndMembers.js
index 8bd9eec5e48..bb3e9f47a01 100644
--- a/services/static-webserver/client/source/class/osparc/filter/OrganizationsAndMembers.js
+++ b/services/static-webserver/client/source/class/osparc/filter/OrganizationsAndMembers.js
@@ -39,7 +39,7 @@ qx.Class.define("osparc.filter.OrganizationsAndMembers", {
     addOption: function(group) {
       let name = "";
       if ("first_name" in group) {
-        name = group["first_name"] + " " + group["last_name"];
+        name = `${group["first_name"]} ${"last_name" in group && group["last_name"] != null ? group["last_name"] : ""}`;
       } else {
         name = group["label"];
       }
diff --git a/services/static-webserver/client/source/class/osparc/metadata/ServicesInStudyUpdate.js b/services/static-webserver/client/source/class/osparc/metadata/ServicesInStudyUpdate.js
index a9b32ca60b4..cf364f8d145 100644
--- a/services/static-webserver/client/source/class/osparc/metadata/ServicesInStudyUpdate.js
+++ b/services/static-webserver/client/source/class/osparc/metadata/ServicesInStudyUpdate.js
@@ -176,7 +176,8 @@ qx.Class.define("osparc.metadata.ServicesInStudyUpdate", {
       });
 
       const updateAllButton = this.__updateAllButton = new osparc.ui.form.FetchButton(this.tr("Update all"), "@MaterialIcons/update/14").set({
-        backgroundColor: "strong-main",
+        appearance: "form-button",
+        padding: [2, 5],
         visibility: "excluded"
       });
       this._servicesGrid.add(updateAllButton, {
@@ -256,7 +257,8 @@ qx.Class.define("osparc.metadata.ServicesInStudyUpdate", {
           }
           if (isUpdatable) {
             updateButton.set({
-              backgroundColor: "strong-main",
+              appearance: "form-button-outlined",
+              padding: [2, 5],
               label: this.tr("Update")
             });
           }
diff --git a/services/static-webserver/client/source/class/osparc/share/Collaborators.js b/services/static-webserver/client/source/class/osparc/share/Collaborators.js
index ce63871af87..6bd4ca940b6 100644
--- a/services/static-webserver/client/source/class/osparc/share/Collaborators.js
+++ b/services/static-webserver/client/source/class/osparc/share/Collaborators.js
@@ -362,7 +362,12 @@ qx.Class.define("osparc.share.Collaborators", {
           const collaborator = osparc.utils.Utils.deepCloneObject(collab);
           if ("first_name" in collaborator) {
             collaborator["thumbnail"] = osparc.utils.Avatar.getUrl(collaborator["login"], 32);
-            collaborator["name"] = osparc.utils.Utils.firstsUp(collaborator["first_name"], collaborator["last_name"]);
+            collaborator["name"] = osparc.utils.Utils.firstsUp(
+              `${"first_name" in collaborator && collaborator["first_name"] != null ?
+                collaborator["first_name"] : collaborator["login"]}`,
+              `${"last_name" in collaborator && collaborator["last_name"] ?
+                collaborator["last_name"] : ""}`
+            );
           }
           collaborator["accessRights"] = accessRights[gid];
           collaborator["showOptions"] = (this._resourceType === "service") ? this._canIWrite() : this._canIDelete();
diff --git a/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js b/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js
index 42783d7412b..169b0c7e5a0 100644
--- a/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js
+++ b/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js
@@ -71,7 +71,7 @@ qx.Class.define("osparc.share.NewCollaboratorsManager", {
         alignX: "right"
       }));
       const shareButton = this.__shareButton = new osparc.ui.form.FetchButton(this.tr("Share")).set({
-        appearance: "strong-button"
+        appearance: "form-button"
       });
       shareButton.addListener("execute", () => this.__shareClicked(), this);
       buttons.add(shareButton);
diff --git a/services/static-webserver/client/source/class/osparc/store/Store.js b/services/static-webserver/client/source/class/osparc/store/Store.js
index f0842cdc9d9..8d11350aeb9 100644
--- a/services/static-webserver/client/source/class/osparc/store/Store.js
+++ b/services/static-webserver/client/source/class/osparc/store/Store.js
@@ -599,7 +599,10 @@ qx.Class.define("osparc.store.Store", {
               .then(orgMemberss => {
                 orgMemberss.forEach(orgMembers => {
                   orgMembers.forEach(orgMember => {
-                    orgMember["label"] = osparc.utils.Utils.firstsUp(orgMember["first_name"], orgMember["last_name"]);
+                    orgMember["label"] = osparc.utils.Utils.firstsUp(
+                      `${"first_name" in orgMember && orgMember["first_name"] != null ? orgMember["first_name"] : orgMember["login"]}`,
+                      `${orgMember["last_name"] ? orgMember["last_name"] : ""}`
+                    );
                     reachableMembers[orgMember["gid"]] = orgMember;
                   });
                 });
diff --git a/services/static-webserver/client/source/class/osparc/utils/Utils.js b/services/static-webserver/client/source/class/osparc/utils/Utils.js
index 065d6efb453..85c786f5445 100644
--- a/services/static-webserver/client/source/class/osparc/utils/Utils.js
+++ b/services/static-webserver/client/source/class/osparc/utils/Utils.js
@@ -837,7 +837,7 @@ qx.Class.define("osparc.utils.Utils", {
     firstsUp: function(...args) {
       const labels = [];
       args.forEach(arg => labels.push(qx.lang.String.firstUp(arg)));
-      return labels.join(" ");
+      return labels.length > 1 ? labels.join(" ") : labels[0];
     },
 
     onlyFirstsUp: function(word) {