From 87d6a055b3555b6e813552e7b831fe017fc44528 Mon Sep 17 00:00:00 2001
From: "zhou.xu" <zhou.xu@bambulab.com>
Date: Wed, 2 Apr 2025 17:05:29 +0800
Subject: [PATCH] FIX:STP and step are treated as the same type

jira: none
Change-Id: Ib4dadbb132fb3cd626f5439ec6b1a11caae3fd2e
---
 src/slic3r/GUI/Plater.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 6181a7111..814d74419 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -12586,7 +12586,7 @@ bool Plater::load_same_type_files(const wxArrayString &filenames) {
         std::string ext_str = ext.extension().string();
         boost::algorithm::to_lower(ext_str);
         if (ext_str == ".stp" || ext_str == ".step") {
-            ext.replace_extension(".step");
+            ext_str =".step";
         }
         return ext_str;
     };