diff --git a/Code/Form1.Designer.cs b/Code/Form1.Designer.cs
index 3b97a47..7367796 100644
--- a/Code/Form1.Designer.cs
+++ b/Code/Form1.Designer.cs
@@ -1024,6 +1024,7 @@
             this.quickSettingsTab.Size = new System.Drawing.Size(901, 258);
             this.quickSettingsTab.TabIndex = 1;
             this.quickSettingsTab.Text = "Quick Settings";
+            this.quickSettingsTab.Enter += new System.EventHandler(this.LoadQuickSettings);
             // 
             // linkLabel1
             // 
diff --git a/Code/Form1.cs b/Code/Form1.cs
index 76a4e91..b4946e9 100644
--- a/Code/Form1.cs
+++ b/Code/Form1.cs
@@ -454,9 +454,6 @@ namespace Flowframes
         {
             if (!initialized) return;
             aiCombox_SelectedIndexChanged(null, null);
-
-            if (mainTabControl.SelectedTab.Text == "Quick Settings")
-                LoadQuickSettings();
         }
 
         private void trimCombox_SelectedIndexChanged(object sender, EventArgs e)
@@ -487,6 +484,9 @@ namespace Flowframes
         {
             if (!quickSettingsInitialized) return;
 
+            if (Program.busy)
+                LoadQuickSettings();    // Discard any changes if busy
+
             ConfigParser.SaveGuiElement(maxVidHeight, ConfigParser.StringMode.Int);
             ConfigParser.SaveComboxIndex(dedupMode);
             ConfigParser.SaveComboxIndex(mpdecimateMode);
@@ -496,7 +496,7 @@ namespace Flowframes
             ConfigParser.SaveGuiElement(scnDetectValue);
         }
 
-        public void LoadQuickSettings ()
+        public void LoadQuickSettings (object sender = null, EventArgs e = null)
         {
             ConfigParser.LoadGuiElement(maxVidHeight);
             ConfigParser.LoadComboxIndex(dedupMode);
@@ -519,9 +519,20 @@ namespace Flowframes
 
         private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
         {
+            if (Program.busy) return;
             new SettingsForm().ShowDialog();
         }
 
         #endregion
+
+        private void quickSettingsTab_Enter(object sender, EventArgs e)
+        {
+            Logger.Log("enter");
+        }
+
+        private void quickSettingsTab_Leave(object sender, EventArgs e)
+        {
+            Logger.Log("leave");
+        }
     }
 }
diff --git a/Code/Main/InterpolateUtils.cs b/Code/Main/InterpolateUtils.cs
index 5468604..d52a4c5 100644
--- a/Code/Main/InterpolateUtils.cs
+++ b/Code/Main/InterpolateUtils.cs
@@ -161,12 +161,17 @@ namespace Flowframes.Main
                 if (!string.IsNullOrWhiteSpace(latestFramePath) && frames > currentFactor)
                 {
                     if (bigPreviewForm == null && !preview.Visible  /* ||Program.mainForm.WindowState != FormWindowState.Minimized */ /* || !Program.mainForm.IsInFocus()*/) return;        // Skip if the preview is not visible or the form is not in focus
-                    if (timeSinceLastPreviewUpdate.ElapsedMilliseconds < previewUpdateRateMs) return;
+                    Logger.Log($"timeSinceLastPreviewUpdate.IsRunning: {timeSinceLastPreviewUpdate.IsRunning} - timeSinceLastPreviewUpdate.ElapsedMilliseconds: {timeSinceLastPreviewUpdate.ElapsedMilliseconds}", true);
+                    if (timeSinceLastPreviewUpdate.IsRunning && timeSinceLastPreviewUpdate.ElapsedMilliseconds < previewUpdateRateMs) return;
+                    Logger.Log("Updating preview", true);
                     Image img = IOUtils.GetImage(latestFramePath);
                     SetPreviewImg(img);
                 }
             }
-            catch { }
+            catch (Exception e)
+            {
+                Logger.Log("Error updating preview: " + e.Message, true);
+            }
         }
 
         public static async Task DeleteInterpolatedInputFrames()