diff --git a/Aerial/Source/Controllers/Preferences.swift b/Aerial/Source/Controllers/Preferences.swift
index 1f903675..d27ca7d1 100644
--- a/Aerial/Source/Controllers/Preferences.swift
+++ b/Aerial/Source/Controllers/Preferences.swift
@@ -650,10 +650,15 @@ final class Preferences {
         return !removed
     }
 
-    func setVideo(videoID: String, inRotation: Bool) {
+    func setVideo(videoID: String, inRotation: Bool,
+                  synchronize: Bool = true) {
         let key = "remove\(videoID)"
         let removed = !inRotation
         userDefaults.set(removed, forKey: key)
+
+        if synchronize {
+            self.synchronize()
+        }
     }
 
     // MARK: - Setting, Getting
@@ -685,5 +690,10 @@ final class Preferences {
         } else {
             userDefaults.set(value, forKey: key)
         }
+        synchronize()
+    }
+
+    func synchronize() {
+        userDefaults.synchronize()
     }
 } //swiftlint:disable:this file_length
diff --git a/Aerial/Source/Controllers/PreferencesWindowController.swift b/Aerial/Source/Controllers/PreferencesWindowController.swift
index b0fe720e..770d4e81 100644
--- a/Aerial/Source/Controllers/PreferencesWindowController.swift
+++ b/Aerial/Source/Controllers/PreferencesWindowController.swift
@@ -641,6 +641,7 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
     @IBAction func popupVideoFormatChange(_ sender: NSPopUpButton) {
         debugLog("UI popupVideoFormat: \(sender.indexOfSelectedItem)")
         preferences.videoFormat = sender.indexOfSelectedItem
+        preferences.synchronize()
         outlineView.reloadData()
     }
 
@@ -655,11 +656,13 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
     @IBAction func multiMonitorModePopupChange(_ sender: NSPopUpButton) {
         debugLog("UI multiMonitorMode: \(sender.indexOfSelectedItem)")
         preferences.multiMonitorMode = sender.indexOfSelectedItem
+        preferences.synchronize()
     }
 
     @IBAction func fadeInOutModePopupChange(_ sender: NSPopUpButton) {
         debugLog("UI fadeInOutMode: \(sender.indexOfSelectedItem)")
         preferences.fadeMode = sender.indexOfSelectedItem
+        preferences.synchronize()
     }
 
     func updateDownloads(done: Int, total: Int, progress: Double) {
@@ -834,6 +837,7 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
     @IBAction func descriptionModePopupChange(_ sender: NSPopUpButton) {
         debugLog("UI descriptionMode: \(sender.indexOfSelectedItem)")
         preferences.showDescriptionsMode = sender.indexOfSelectedItem
+        preferences.synchronize()
     }
 
     @IBAction func fontPickerClick(_ sender: NSButton?) {
@@ -936,11 +940,13 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
     @IBAction func fadeInOutTextModePopupChange(_ sender: NSPopUpButton) {
         debugLog("UI fadeInOutTextMode: \(sender.indexOfSelectedItem)")
         preferences.fadeModeText = sender.indexOfSelectedItem
+        preferences.synchronize()
     }
 
     @IBAction func extraCornerPopupChange(_ sender: NSPopUpButton) {
         debugLog("UI extraCorner: \(sender.indexOfSelectedItem)")
         preferences.extraCorner = sender.indexOfSelectedItem
+        preferences.synchronize()
     }
 
     @IBAction func changeMarginsToCornerClick(_ sender: NSButton) {
@@ -1398,11 +1404,16 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
 
         for video in videos {
             if video.url4KHEVC != "" {
-                preferences.setVideo(videoID: video.id, inRotation: true)
+                preferences.setVideo(videoID: video.id,
+                                     inRotation: true,
+                                     synchronize: false)
             } else {
-                preferences.setVideo(videoID: video.id, inRotation: false)
+                preferences.setVideo(videoID: video.id,
+                                     inRotation: false,
+                                     synchronize: false)
             }
         }
+        preferences.synchronize()
 
         outlineView.reloadData()
     }
@@ -1414,11 +1425,16 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
 
         for video in videos {
             if video.isAvailableOffline {
-                preferences.setVideo(videoID: video.id, inRotation: true)
+                preferences.setVideo(videoID: video.id,
+                                     inRotation: true,
+                                     synchronize: false)
             } else {
-                preferences.setVideo(videoID: video.id, inRotation: false)
+                preferences.setVideo(videoID: video.id,
+                                     inRotation: false,
+                                     synchronize: false)
             }
         }
+        preferences.synchronize()
 
         outlineView.reloadData()
     }
@@ -1461,8 +1477,11 @@ final class PreferencesWindowController: NSWindowController, NSOutlineViewDataSo
         }
 
         for video in videos {
-            preferences.setVideo(videoID: video.id, inRotation: inRotation)
+            preferences.setVideo(videoID: video.id,
+                                 inRotation: inRotation,
+                                 synchronize: false)
         }
+        preferences.synchronize()
 
         outlineView.reloadData()
     }
@@ -1862,6 +1881,7 @@ extension PreferencesWindowController: NSFontChanging {
             // Update our label
             extraMessageFontLabel.stringValue = preferences.extraFontName! + ", \(preferences.extraFontSize!) pt"
         }
+        preferences.synchronize()
     }
 }