diff --git a/CHANGELOG.md b/CHANGELOG.md
index 98ab6d61..9fc0b5da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 FlatLaf Change Log
 ==================
 
+## 0.44-SNAPSHOT
+
+#### Fixed bugs
+
+- Custom window decorations: Not visible menu bar is now ignored in layout.
+
+
 ## 0.43
 
 #### New features and improvements
diff --git a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatRootPaneUI.java b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatRootPaneUI.java
index 49b687f9..d29406ef 100644
--- a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatRootPaneUI.java
+++ b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatRootPaneUI.java
@@ -252,8 +252,9 @@ public class FlatRootPaneUI
 			int width = Math.max( titlePaneSize.width, contentSize.width );
 			int height = titlePaneSize.height + contentSize.height;
 			if( titlePane == null || !titlePane.isMenuBarEmbedded() ) {
-				Dimension menuBarSize = (rootPane.getJMenuBar() != null)
-					? getSizeFunc.apply( rootPane.getJMenuBar() )
+				JMenuBar menuBar = rootPane.getJMenuBar();
+				Dimension menuBarSize = (menuBar != null && menuBar.isVisible())
+					? getSizeFunc.apply( menuBar )
 					: new Dimension();
 
 				width = Math.max( width, menuBarSize.width );
@@ -290,7 +291,7 @@ public class FlatRootPaneUI
 			}
 
 			JMenuBar menuBar = rootPane.getJMenuBar();
-			if( menuBar != null ) {
+			if( menuBar != null && menuBar.isVisible() ) {
 				if( titlePane != null && titlePane.isMenuBarEmbedded() ) {
 					titlePane.validate();
 					menuBar.setBounds( titlePane.getMenuBarBounds() );
diff --git a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
index 9e2e26b8..49026992 100644
--- a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
+++ b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
@@ -157,7 +157,7 @@ public class FlatTitlePane
 			@Override
 			public Dimension getPreferredSize() {
 				JMenuBar menuBar = rootPane.getJMenuBar();
-				return (menuBar != null && isMenuBarEmbedded())
+				return (menuBar != null && menuBar.isVisible() && isMenuBarEmbedded())
 					? FlatUIUtils.addInsets( menuBar.getPreferredSize(), UIScale.scale( menuBarMargins ) )
 					: new Dimension();
 			}
@@ -238,7 +238,7 @@ public class FlatTitlePane
 	}
 
 	protected void activeChanged( boolean active ) {
-		boolean hasEmbeddedMenuBar = rootPane.getJMenuBar() != null && isMenuBarEmbedded();
+		boolean hasEmbeddedMenuBar = rootPane.getJMenuBar() != null && rootPane.getJMenuBar().isVisible() && isMenuBarEmbedded();
 		Color background = FlatUIUtils.nonUIResource( active ? activeBackground : inactiveBackground );
 		Color foreground = FlatUIUtils.nonUIResource( active ? activeForeground : inactiveForeground );
 		Color titleForeground = (hasEmbeddedMenuBar && active) ? FlatUIUtils.nonUIResource( embeddedForeground ) : foreground;
@@ -688,7 +688,7 @@ debug*/
 
 		protected Border getMenuBarBorder() {
 			JMenuBar menuBar = rootPane.getJMenuBar();
-			return (menuBar != null && isMenuBarEmbedded()) ? menuBar.getBorder() : null;
+			return (menuBar != null && menuBar.isVisible() && isMenuBarEmbedded()) ? menuBar.getBorder() : null;
 		}
 	}