diff --git a/backend/controllers/shared/RTLConf.js b/backend/controllers/shared/RTLConf.js
index 79dbb652..35270a0a 100644
--- a/backend/controllers/shared/RTLConf.js
+++ b/backend/controllers/shared/RTLConf.js
@@ -254,7 +254,7 @@ export const updateApplicationSettings = (req, res, next) => {
     try {
         const oldConfig = JSON.parse(fs.readFileSync(RTLConfFile, 'utf-8'));
         const config = common.addSecureData(JSON.parse(JSON.stringify(req.body)));
-        const runtimeConfig = JSON.parse(JSON.stringify(oldConfig));
+        const runtimeConfig = oldConfig;
         Object.keys(config).forEach((key) => {
             if (key !== 'nodes') {
                 runtimeConfig[key] = config[key];
@@ -298,6 +298,7 @@ export const updateApplicationSettings = (req, res, next) => {
         delete fileConfig.allowPasswordUpdate;
         delete fileConfig.rtlConfFilePath;
         delete fileConfig.rtlPass;
+        delete fileConfig.multiPass;
         fileConfig.nodes?.forEach((node) => {
             delete node.authentication?.options;
             delete node.authentication?.runeValue;
diff --git a/backend/utils/common.js b/backend/utils/common.js
index 0c6b37ef..9de430f9 100644
--- a/backend/utils/common.js
+++ b/backend/utils/common.js
@@ -73,6 +73,7 @@ export class CommonService {
             config.nodes?.forEach((node) => {
                 const appConfigNode = appConfigNodes.get(node.index);
                 if (appConfigNode?.authentication) {
+                    node.authentication = node.authentication || {};
                     if (appConfigNode.authentication.macaroonPath) {
                         node.authentication.macaroonPath = appConfigNode.authentication.macaroonPath;
                     }
diff --git a/server/controllers/shared/RTLConf.ts b/server/controllers/shared/RTLConf.ts
index dae540d3..bc86d75c 100644
--- a/server/controllers/shared/RTLConf.ts
+++ b/server/controllers/shared/RTLConf.ts
@@ -254,7 +254,7 @@ export const updateApplicationSettings = (req, res, next) => {
   try {
     const oldConfig = JSON.parse(fs.readFileSync(RTLConfFile, 'utf-8'));
     const config = common.addSecureData(JSON.parse(JSON.stringify(req.body)));
-    const runtimeConfig = JSON.parse(JSON.stringify(oldConfig));
+    const runtimeConfig = oldConfig;
     Object.keys(config).forEach((key) => {
       if (key !== 'nodes') {
         runtimeConfig[key] = config[key];
@@ -298,6 +298,7 @@ export const updateApplicationSettings = (req, res, next) => {
     delete fileConfig.allowPasswordUpdate;
     delete fileConfig.rtlConfFilePath;
     delete fileConfig.rtlPass;
+    delete fileConfig.multiPass;
     fileConfig.nodes?.forEach((node) => {
       delete node.authentication?.options;
       delete node.authentication?.runeValue;
diff --git a/server/utils/common.ts b/server/utils/common.ts
index 685f6656..79a23584 100644
--- a/server/utils/common.ts
+++ b/server/utils/common.ts
@@ -82,6 +82,7 @@ export class CommonService {
     config.nodes?.forEach((node) => {
       const appConfigNode = appConfigNodes.get(node.index);
       if (appConfigNode?.authentication) {
+        node.authentication = node.authentication || {};
         if (appConfigNode.authentication.macaroonPath) {
           node.authentication.macaroonPath = appConfigNode.authentication.macaroonPath;
         }