From cf567686df8a059b18649fccd1542ed2d1c76768 Mon Sep 17 00:00:00 2001
From: tombrazier <68918209+tombrazier@users.noreply.github.com>
Date: Fri, 22 Apr 2022 07:50:38 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=A9=B9=20Fix=20MPC=20Edit=20Menu=20(#2405?=
 =?UTF-8?q?9)?=
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Followup to #23984

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
---
 Marlin/src/lcd/menu/menu_advanced.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Marlin/src/lcd/menu/menu_advanced.cpp b/Marlin/src/lcd/menu/menu_advanced.cpp
index efc86025f790..214ff133b2b8 100644
--- a/Marlin/src/lcd/menu/menu_advanced.cpp
+++ b/Marlin/src/lcd/menu/menu_advanced.cpp
@@ -352,6 +352,7 @@ void menu_backlash();
         #define MPC_EDIT_ITEMS(N) \
           _MPC_EDIT_ITEMS(N); \
           EDIT_ITEM_FAST_N(float43, N, MSG_MPC_AMBIENT_XFER_COEFF_FAN_E, &editable.decimal, 0, 1, []{ \
+            MPC_t &c = thermalManager.temp_hotend[MenuItemBase::itemIndex].constants; \
             c.fan255_adjustment = editable.decimal - c.ambient_xfer_coeff_fan0; \
           })
       #else
@@ -359,14 +360,14 @@ void menu_backlash();
       #endif
 
       #if HAS_MULTI_HOTEND
-        auto mpc_edit_hotend = [&](const uint8_t e) {
+        static auto mpc_edit_hotend = [](const uint8_t e) {
           MPC_EDIT_DEFS(e);
           START_MENU();
           BACK_ITEM(MSG_TEMPERATURE);
           MPC_EDIT_ITEMS(e);
           END_MENU();
         };
-        #define MPC_ENTRY(N) SUBMENU_N(N, MSG_MPC_EDIT, [&]{ mpc_edit_hotend(MenuItemBase::itemIndex); });
+        #define MPC_ENTRY(N) SUBMENU_N(N, MSG_MPC_EDIT, []{ mpc_edit_hotend(MenuItemBase::itemIndex); });
       #else
         #define MPC_ENTRY MPC_EDIT_ITEMS
       #endif