From ec46336df7e71636252a675038b6b148836923bd Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Wed, 21 Mar 2018 04:33:16 -0500
Subject: [PATCH] For MK2_MULTIPLEXER undef DISABLE_INACTIVE_EXTRUDER

Fix #10098
---
 Marlin/Conditionals_LCD.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Marlin/Conditionals_LCD.h b/Marlin/Conditionals_LCD.h
index 31ba12e4b3..6632031a01 100644
--- a/Marlin/Conditionals_LCD.h
+++ b/Marlin/Conditionals_LCD.h
@@ -376,9 +376,10 @@
 
   #define HAS_DEBUG_MENU ENABLED(LCD_PROGRESS_BAR_TEST)
 
-  // MK2 Multiplexer forces SINGLENOZZLE to be enabled
+  // MK2 Multiplexer forces SINGLENOZZLE and kills DISABLE_INACTIVE_EXTRUDER
   #if ENABLED(MK2_MULTIPLEXER)
     #define SINGLENOZZLE
+    #undef DISABLE_INACTIVE_EXTRUDER
   #endif
 
   /**