diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5816c037..fb17c974 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- Losing profiles on upgrade. [#163](https://github.com/passepartoutvpn/passepartout-ios/issues/163)
+- Twitch link does not work when Twitch app not installed. [#162](https://github.com/passepartoutvpn/passepartout-ios/issues/162)
+
 ## 1.13.0 (2021-01-01)
 
 ### Added
diff --git a/Passepartout-iOS/Scenes/NetworkSettingsViewController.swift b/Passepartout-iOS/Scenes/NetworkSettingsViewController.swift
index eb2daead..21aa3357 100644
--- a/Passepartout-iOS/Scenes/NetworkSettingsViewController.swift
+++ b/Passepartout-iOS/Scenes/NetworkSettingsViewController.swift
@@ -144,7 +144,7 @@ class NetworkSettingsViewController: UITableViewController {
         updateGateway(networkChoices.gateway)
         updateDNS(networkChoices.dns)
         updateProxy(networkChoices.proxy)
-        updateMTU(networkChoices.mtu)
+        updateMTU(networkChoices.mtu ?? ProfileNetworkChoices.defaultChoice)
     }
     
     override func viewWillAppear(_ animated: Bool) {
@@ -218,7 +218,7 @@ class NetworkSettingsViewController: UITableViewController {
     
     private func updateMTU(_ choice: NetworkChoice) {
         networkChoices.mtu = choice
-        switch networkChoices.mtu {
+        switch networkChoices.mtu ?? ProfileNetworkChoices.defaultChoice {
         case .client:
             if let settings = clientNetworkSettings {
                 networkSettings.copyMTU(from: settings)
@@ -392,7 +392,7 @@ extension NetworkSettingsViewController {
         case .mtu:
             let cell = Cells.setting.dequeue(from: tableView, for: indexPath)
             cell.leftText = L10n.Core.NetworkSettings.Mtu.title
-            cell.rightText = networkChoices.mtu.description
+            cell.rightText = (networkChoices.mtu ?? ProfileNetworkChoices.defaultChoice).description
             return cell
 
         case .gatewayIPv4:
diff --git a/Submodules/Core b/Submodules/Core
index 1cacb261..97092dbf 160000
--- a/Submodules/Core
+++ b/Submodules/Core
@@ -1 +1 @@
-Subproject commit 1cacb2612d9577a19a1406b89e21a52185695932
+Subproject commit 97092dbf0ff403a8e117a7976af7de93fe4f2136