From 6169b4fa2a4fc94cf81a2d44ca3d403f817edb98 Mon Sep 17 00:00:00 2001
From: Noisyfox <timemanager.rick@gmail.com>
Date: Thu, 24 Oct 2024 21:27:46 +0800
Subject: [PATCH] Fix issue when the extruder do not have any adjustable
 extrusion

---
 src/libslic3r/GCode/CoolingBuffer.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libslic3r/GCode/CoolingBuffer.cpp b/src/libslic3r/GCode/CoolingBuffer.cpp
index e88f3b38f..c83d854ee 100644
--- a/src/libslic3r/GCode/CoolingBuffer.cpp
+++ b/src/libslic3r/GCode/CoolingBuffer.cpp
@@ -555,8 +555,7 @@ static inline void extruder_range_slow_down_non_proportional(
     for (PerExtruderAdjustments *adj : by_min_print_speed) {
         adj->idx_line_begin = 0;
         adj->idx_line_end   = 0;
-        assert(adj->idx_line_begin < adj->n_lines_adjustable);
-        if (adj->lines[adj->idx_line_begin].feedrate > feedrate)
+        if (adj->idx_line_begin < adj->n_lines_adjustable && adj->lines[adj->idx_line_begin].feedrate> feedrate)
             feedrate = adj->lines[adj->idx_line_begin].feedrate;
     }
     assert(feedrate > 0.f);
@@ -643,6 +642,7 @@ float CoolingBuffer::calculate_layer_slowdown(std::vector<PerExtruderAdjustments
         } else
             elapsed_time_total0 += adj.elapsed_time_total();
     }
+
     std::sort(by_slowdown_time.begin(), by_slowdown_time.end(),
         [](const PerExtruderAdjustments *adj1, const PerExtruderAdjustments *adj2)
             { return adj1->slow_down_layer_time < adj2->slow_down_layer_time; });