From b4839c2ae36e6272cb1f20dfb40a8f3a053b5bea Mon Sep 17 00:00:00 2001
From: "zhimin.zeng" <zhimin.zeng@bambulab.com>
Date: Fri, 22 Aug 2025 10:55:00 +0800
Subject: [PATCH] FIX: crash when delete cali value

jira: STUDIO-14176
Change-Id: I3d59c8ab60842509c1166cff92ff329d1a673038
(cherry picked from commit 45d4e584228e50026117a83f61afee45dcee09b1)
---
 src/slic3r/GUI/CaliHistoryDialog.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/CaliHistoryDialog.cpp b/src/slic3r/GUI/CaliHistoryDialog.cpp
index 61605e4ae94..615fc78734f 100644
--- a/src/slic3r/GUI/CaliHistoryDialog.cpp
+++ b/src/slic3r/GUI/CaliHistoryDialog.cpp
@@ -368,7 +368,8 @@ void HistoryWindow::sync_history_data() {
         delete_button->Bind(wxEVT_BUTTON, [this, gbSizer, i, &result](auto& e) {
             for (int j = 0; j < HISTORY_WINDOW_ITEMS_COUNT; j++) {
                 auto item = gbSizer->FindItemAtPosition({ i, j });
-                item->GetWindow()->Hide();
+                if (item)
+                    item->GetWindow()->Hide();
             }
             gbSizer->SetEmptyCellSize({ 0,0 });
             m_history_data_panel->Layout();