diff --git a/ui/hud.py b/ui/hud.py
index fbd2f41..7f553b3 100644
--- a/ui/hud.py
+++ b/ui/hud.py
@@ -600,6 +600,7 @@ class HUD:
 
         if self.properties_width < VIZ_RIGHT_MARGIN + 50:
             self.properties_width = VIZ_RIGHT_MARGIN + 50 # Ensure properties panel is wide enough for tooltip
+            self.update_layout(self.screen_width, self.screen_height)  # Immediately update layout
 
         if not hasattr(cell, 'behavioral_model'):
             return