From 0d921803255337b688587df114f534f3e96bf3cd Mon Sep 17 00:00:00 2001
From: harrierpigeon <college.joseph.robertson@gmail.com>
Date: Wed, 5 Aug 2026 03:34:04 -0500
Subject: [PATCH] Fix: clear belt fields in GCodeProcessorResult::reset() (R2)

reset() cleared the sibling machine_frame_transform_active but not
belt_tilt_angle/belt_z_origin/preslice_remap_*; a reused result carried
stale belt metadata into a subsequent normal print, flipping the store_z
branch and corrupting start-gcode preview Z for non-belt prints.
---
 src/libslic3r/GCode/GCodeProcessor.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libslic3r/GCode/GCodeProcessor.cpp b/src/libslic3r/GCode/GCodeProcessor.cpp
index 43536c30b9..e872a2f652 100644
--- a/src/libslic3r/GCode/GCodeProcessor.cpp
+++ b/src/libslic3r/GCode/GCodeProcessor.cpp
@@ -2531,6 +2531,11 @@ void GCodeProcessorResult::reset() {
     timelapse_warning_code = 0;
     printable_height = 0.0f;
     machine_frame_transform_active = false;
+    belt_tilt_angle = 0.f;
+    belt_z_origin   = 0.f;
+    preslice_remap_x = RemapAxis::PosX;
+    preslice_remap_y = RemapAxis::PosY;
+    preslice_remap_z = RemapAxis::PosZ;
     settings_ids.reset();
     filaments_count = 0;
     backtrace_enabled = false;