From 55ac2f4c2376aeef23f9161c634a4fc6cef5be00 Mon Sep 17 00:00:00 2001
From: InsanityAutomation
 <38436470+InsanityAutomation@users.noreply.github.com>
Date: Sat, 20 Oct 2018 14:39:33 -0400
Subject: [PATCH] Fix filament runout for idex duplication modes (#12168)

---
 Marlin/src/feature/runout.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Marlin/src/feature/runout.h b/Marlin/src/feature/runout.h
index 3f35536a7..6e84742b8 100644
--- a/Marlin/src/feature/runout.h
+++ b/Marlin/src/feature/runout.h
@@ -167,6 +167,10 @@ class FilamentSensorTypeSwitch : public FilamentSensorTypeBase {
         return runout_bits;                     // A single sensor applying to all extruders
       #else
         #if ENABLED(DUAL_X_CARRIAGE)
+          if (dual_x_carriage_mode == DXC_DUPLICATION_MODE || dual_x_carriage_mode == DXC_SCALED_DUPLICATION_MODE)
+            return runout_bits;                 // Any extruder
+          else
+        #elif ENABLED(DUAL_NOZZLE_DUPLICATION_MODE)
           if (extruder_duplication_enabled)
             return runout_bits;                 // Any extruder
           else