From 620b6053d8f51ce5bb1c68c84f2087e995840684 Mon Sep 17 00:00:00 2001
From: "zhimin.zeng" <zhimin.zeng@bambulab.com>
Date: Wed, 25 Dec 2024 11:00:50 +0800
Subject: [PATCH] FIX: crash in new wiper tower

jira: none
Change-Id: I3d9b59b15ab93da201e07670155af28b7596081c
---
 src/libslic3r/GCode/WipeTower.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libslic3r/GCode/WipeTower.cpp b/src/libslic3r/GCode/WipeTower.cpp
index 289fab4b9..a1b30f9de 100644
--- a/src/libslic3r/GCode/WipeTower.cpp
+++ b/src/libslic3r/GCode/WipeTower.cpp
@@ -2657,8 +2657,8 @@ int WipeTower::get_wall_filament_for_all_layer()
     }
 
     //std::vector<std::pair<int, int>> category_counts_vec;
-    int selected_category = category_counts.begin()->first;
-    int selected_count = category_counts.begin()->second;
+    int selected_category = -1;
+    int selected_count = 0;
 
     for (auto iter = category_counts.begin(); iter != category_counts.end(); ++iter) {
         if (iter->second > selected_count) {