diff --git a/src/components/AdminSidebar/AdminSidebar.tsx b/src/components/AdminSidebar/AdminSidebar.tsx
index 04fcd75..ef84fe7 100644
--- a/src/components/AdminSidebar/AdminSidebar.tsx
+++ b/src/components/AdminSidebar/AdminSidebar.tsx
@@ -16,7 +16,7 @@ class AdminSidebar extends React.Component<AdminSidebarProps, AdminSidebarState>
         <AdminSidebarLink to="/admin/events" path={path}>Events</AdminSidebarLink>
         <AdminSidebarLink to="/admin/feed" path={path}>Feed</AdminSidebarLink>
         <AdminSidebarLink to="/admin/signups" path={path}>Signup forms</AdminSidebarLink>
-        <AdminSidebarLink to="https:https://static.sika.sik.party/admin" path={path}>Files</AdminSidebarLink>
+        <AdminSidebarLink to="https://static.sika.sik.party/admin" path={path}>Files</AdminSidebarLink>
         <AdminSidebarLink id="admin-sidebar-logout" to="/admin/logout" path={path}>Logout</AdminSidebarLink>
       </div>
     );
diff --git a/src/models/Event.ts b/src/models/Event.ts
index 81e9bd8..3ce1b27 100644
--- a/src/models/Event.ts
+++ b/src/models/Event.ts
@@ -17,9 +17,7 @@ export interface Event {
   end_time: string;
   image: string;
   tags: Tag[];
-  tag_id?: number[];
   visible: boolean;
-  signup_id: number[];
   signupForm: SignupForm[];
 }
 
diff --git a/src/models/Feed.ts b/src/models/Feed.ts
index dc291d3..633381d 100644
--- a/src/models/Feed.ts
+++ b/src/models/Feed.ts
@@ -13,7 +13,6 @@ export interface Post {
   content_en: string;
   publish_time: string;
   autohide: string;
-  tag_id: number[];
   tags: number[];
   visible: boolean;
 }
diff --git a/src/pages/admin/EventCreatePage.tsx b/src/pages/admin/EventCreatePage.tsx
index d2db532..e05d1ba 100644
--- a/src/pages/admin/EventCreatePage.tsx
+++ b/src/pages/admin/EventCreatePage.tsx
@@ -52,8 +52,8 @@ class EventCreatePage extends React.Component<EventCreatePageProps, EventCreateP
   fetchInitialFormData = async (id) => {
     try {
       const data = await getEvent(id, true);
-      data.tags = data.tag_id as any;
-      data.signupForm = data.signup_id as any;
+      data.tags = (data.tags as any).map(inst => inst.id);
+      data.signupForm = (data.signupForm as any).map(inst => inst.id);
       this.setState({
         formData: data,
       });
@@ -98,24 +98,33 @@ class EventCreatePage extends React.Component<EventCreatePageProps, EventCreateP
     const { history } = this.props;
     try {
       const payload = data.formData;
-      if (typeof payload.image === "string" && payload.image.startsWith("http")) payload.image = undefined;
       payload.signup_id = payload.signupForm;
       payload.tag_id = payload.tags;
+      if (typeof payload.image === "string" && payload.image.startsWith("http")) payload.image = undefined;
+
       if (payload.id === undefined) {
         const resp = await createEvent(payload);
-        resp.tags = resp.tag_id as any;
-        resp.signupForm = resp.signup_id as any;
+        // TODO: Backend return old data because of Prefetch (used for filtering invisble signupForms from GET)
+        // Copy from old state instead...
+        // resp.tags = (resp.tags as any).map(inst => inst.id);
+        // resp.signupForm = (resp.signupForm as any).map(inst => inst.id);
+        resp.tags = data.formData.tags;
+        resp.signupForm = data.formData.signupForm;
         this.setState({
           formData: resp,
           statusMessage: "Event created successfully",
         });
       } else {
         const resp = await updateEvent(payload);
-        resp.tags = resp.tag_id as any;
-        resp.signupForm = resp.signup_id as any;
+        // TODO: Backend return old data because of Prefetch (used for filtering invisble signupForms from GET)
+        // Copy from old state instead...
+        // resp.tags = (resp.tags as any).map(inst => inst.id);
+        // resp.signupForm = (resp.signupForm as any).map(inst => inst.id);
+        resp.tags = data.formData.tags;
+        resp.signupForm = data.formData.signupForm;
         this.setState({
           formData: resp,
-          statusMessage: "Event updated successfully.",
+          statusMessage: "Event updated successfully",
         });
       }
     } catch (err) {
diff --git a/src/pages/admin/FeedCreatePage.tsx b/src/pages/admin/FeedCreatePage.tsx
index 070c2b8..401aa85 100644
--- a/src/pages/admin/FeedCreatePage.tsx
+++ b/src/pages/admin/FeedCreatePage.tsx
@@ -47,7 +47,7 @@ class FeedCreatePage extends React.Component<FeedCreatePageProps, FeedCreatePage
   fetchInitialFormData = async (id) => {
     try {
       const data = await getPost(id);
-      data.tags = data.tag_id;
+      // data.tags = data.tag_id;
       this.setState({
         formData: data,
       });
@@ -84,14 +84,14 @@ class FeedCreatePage extends React.Component<FeedCreatePageProps, FeedCreatePage
 
       if (payload.id === undefined) {
         const resp = await createPost(payload);
-        resp.tags = resp.tag_id;
+        // resp.tags = resp.tags;
         this.setState({
           formData: resp,
           statusMessage: "Post created successfully",
         });
       } else {
         const resp = await updatePost(payload);
-        resp.tags = resp.tag_id;
+        // resp.tags = resp.tag_id;
         this.setState({
           formData: resp,
           statusMessage: "Post updated successfully.",
diff --git a/src/views/SignUpPage/FormUtils.tsx b/src/views/SignUpPage/FormUtils.tsx
index 038596a..43c126b 100644
--- a/src/views/SignUpPage/FormUtils.tsx
+++ b/src/views/SignUpPage/FormUtils.tsx
@@ -2,6 +2,7 @@
 import { Question } from "@components/SignupQuestionsWidget";
 import { SignupForm } from "@models/SignupForm";
 import { EMAIL_REGEX } from "@utils/regexes";
+import escapeRegExp from "lodash/escapeRegExp";
 
 const questionToUISchemaProp = (question: Question): {} => {
   let obj = {};
@@ -52,7 +53,7 @@ const questionToValidationSchema = (question: Question) => {
     obj = {
       type: "string",
       title: question.name,
-      pattern: question.options.map(x => `^${x}$`).join("|"),
+      pattern: question.options.map(x => `^${escapeRegExp(x)}$`).join("|"),
       enum: question.options,
     }
   }
@@ -65,7 +66,7 @@ const questionToValidationSchema = (question: Question) => {
       items: {
         type: "string",
         enum: question.options,
-        pattern: question.options.map(x => `^${x}$`).join("|"),
+        pattern: question.options.map(x => `^${escapeRegExp(x)}$`).join("|"),
       },
     }
   }