diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 43aceb1da..7628a2012 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -8518,10 +8518,13 @@ bool Plater::priv::check_ams_status_impl()
             }
         }
 
-        bool is_same_as_printer = preset_bundle->extruder_ams_counts[0][4] == main_4
+        bool is_same_as_printer = false;
+        if (!preset_bundle->extruder_ams_counts.empty() && !preset_bundle->extruder_ams_counts.front().empty()) {
+            is_same_as_printer = preset_bundle->extruder_ams_counts[0][4] == main_4
             && preset_bundle->extruder_ams_counts[0][1] == main_1
             && preset_bundle->extruder_ams_counts[1][4] == deputy_4
             && preset_bundle->extruder_ams_counts[1][1] == deputy_1;
+        }
 
         if (!is_same_as_printer) {
             struct SyncInfoDialog : MessageDialog
diff --git a/src/slic3r/GUI/StatusPanel.cpp b/src/slic3r/GUI/StatusPanel.cpp
index 32abc2937..f46f25efe 100644
--- a/src/slic3r/GUI/StatusPanel.cpp
+++ b/src/slic3r/GUI/StatusPanel.cpp
@@ -4803,7 +4803,7 @@ void StatusPanel::msw_rescale()
 
     m_bpButton_xy->Rescale();
     auto size = TEMP_CTRL_MIN_SIZE_OF_SINGLE_NOZZLE;
-    if (obj->m_extder_data.total_extder_count >= 2) size = TEMP_CTRL_MIN_SIZE_OF_DOUBLE_NOZZLE;
+    if (obj && obj->m_extder_data.total_extder_count >= 2) size = TEMP_CTRL_MIN_SIZE_OF_DOUBLE_NOZZLE;
     m_tempCtrl_nozzle->SetMinSize(size);
     m_tempCtrl_nozzle->Rescale();
     m_tempCtrl_nozzle_deputy->SetMinSize(size);