diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 2efeeee10d..3af7340c28 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -13513,7 +13513,7 @@ bool Plater::up_to_date(bool saved, bool backup)
                                         !Slic3r::has_other_changes(backup));
 }
 
-void Plater::add_model(bool imperial_units, std::string fname)
+bool Plater::add_model(bool imperial_units, std::string fname)
 {
     wxArrayString input_files;
 
@@ -13521,7 +13521,7 @@ void Plater::add_model(bool imperial_units, std::string fname)
     if (fname.empty()) {
         wxGetApp().import_model(this, input_files);
         if (input_files.empty())
-            return;
+            return false;
 
         for (const auto& file : input_files)
             paths.emplace_back(into_path(file));
@@ -13565,7 +13565,8 @@ void Plater::add_model(bool imperial_units, std::string fname)
 
     auto strategy = LoadStrategy::LoadModel;
     if (imperial_units) strategy = strategy | LoadStrategy::ImperialUnits;
-    if (!load_files(paths, strategy, ask_multi).empty()) {
+    const bool loaded = !load_files(paths, strategy, ask_multi).empty();
+    if (loaded) {
 
         if (get_project_name() == _L("Untitled") && paths.size() > 0) {
             boost::filesystem::path full_path(paths[0].string());
@@ -13574,6 +13575,7 @@ void Plater::add_model(bool imperial_units, std::string fname)
 
         wxGetApp().mainframe->update_title();
     }
+    return loaded;
 }
 
 void Plater::calib_pa(const Calib_Params& params)
@@ -13860,7 +13862,8 @@ void Plater::cut_horizontal(size_t obj_idx, size_t instance_idx, double z, Model
 }
 
 void Plater::_calib_pa_tower(const Calib_Params& params) {
-    add_model(false, Slic3r::resources_dir() + "/calib/pressure_advance/tower_with_seam.drc");
+    if (!add_model(false, Slic3r::resources_dir() + "/calib/pressure_advance/tower_with_seam.drc"))
+        return;
 
     auto& print_config = wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto printer_config = &wxGetApp().preset_bundle->printers.get_edited_preset().config;
@@ -14100,7 +14103,8 @@ void Plater::calib_temp(const Calib_Params& params) {
     wxGetApp().mainframe->select_tab(size_t(MainFrame::tp3DEditor));
     if (params.mode != CalibMode::Calib_Temp_Tower) return;
     
-    add_model(false, Slic3r::resources_dir() + "/calib/temperature_tower/temperature_tower.drc");
+    if (!add_model(false, Slic3r::resources_dir() + "/calib/temperature_tower/temperature_tower.drc"))
+        return;
     auto printer_config = &wxGetApp().preset_bundle->printers.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
     auto start_temp = lround(params.start);
@@ -14176,7 +14180,8 @@ void Plater::calib_max_vol_speed(const Calib_Params& params)
     wxGetApp().mainframe->select_tab(size_t(MainFrame::tp3DEditor));
     if (params.mode != CalibMode::Calib_Vol_speed_Tower)
         return;
-    add_model(false, Slic3r::resources_dir() + "/calib/volumetric_speed/SpeedTestStructure.drc");
+    if (!add_model(false, Slic3r::resources_dir() + "/calib/volumetric_speed/SpeedTestStructure.drc"))
+        return;
 
     auto print_config = &wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
@@ -14255,7 +14260,8 @@ void Plater::calib_retraction(const Calib_Params& params)
     if (params.mode != CalibMode::Calib_Retraction_tower)
         return;
 
-    add_model(false, Slic3r::resources_dir() + "/calib/retraction/retraction_tower.drc");
+    if (!add_model(false, Slic3r::resources_dir() + "/calib/retraction/retraction_tower.drc"))
+        return;
 
     auto print_config = &wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
@@ -14314,7 +14320,8 @@ void Plater::calib_VFA(const Calib_Params& params)
     if (params.mode != CalibMode::Calib_VFA_Tower)
         return;
 
-    add_model(false, Slic3r::resources_dir() + "/calib/vfa/vfa.drc");
+    if (!add_model(false, Slic3r::resources_dir() + "/calib/vfa/vfa.drc"))
+        return;
     auto print_config = &wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
     auto printer_config  = &wxGetApp().preset_bundle->printers.get_edited_preset().config;
@@ -14359,7 +14366,8 @@ void Plater::calib_input_shaping_freq(const Calib_Params& params)
     if (params.mode != CalibMode::Calib_Input_shaping_freq)
         return;
 
-    add_model(false, Slic3r::resources_dir() + (params.test_model < 1 ? "/calib/input_shaping/ringing_tower.drc" : "/calib/input_shaping/fast_tower_test.drc"));
+    if (!add_model(false, Slic3r::resources_dir() + (params.test_model < 1 ? "/calib/input_shaping/ringing_tower.drc" : "/calib/input_shaping/fast_tower_test.drc")))
+        return;
     auto print_config = &wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
     auto printer_config  = &wxGetApp().preset_bundle->printers.get_edited_preset().config;
@@ -14424,7 +14432,8 @@ void Plater::calib_input_shaping_damp(const Calib_Params& params)
     if (params.mode != CalibMode::Calib_Input_shaping_damp)
         return;
 
-    add_model(false, Slic3r::resources_dir() + (params.test_model < 1 ? "/calib/input_shaping/ringing_tower.drc" : "/calib/input_shaping/fast_tower_test.drc"));
+    if (!add_model(false, Slic3r::resources_dir() + (params.test_model < 1 ? "/calib/input_shaping/ringing_tower.drc" : "/calib/input_shaping/fast_tower_test.drc")))
+        return;
     auto print_config = &wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
     auto printer_config  = &wxGetApp().preset_bundle->printers.get_edited_preset().config;
@@ -14491,7 +14500,8 @@ void Plater::Calib_Cornering(const Calib_Params& params)
     const std::string cornering_model_path = params.test_model == 0
         ? "/calib/input_shaping/ringing_tower.drc"
         : (params.test_model == 1 ? "/calib/input_shaping/fast_tower_test.drc" : "/calib/cornering/SCV-V2.drc");
-    add_model(false, Slic3r::resources_dir() + cornering_model_path);
+    if (!add_model(false, Slic3r::resources_dir() + cornering_model_path))
+        return;
     auto print_config = &wxGetApp().preset_bundle->prints.get_edited_preset().config;
     auto filament_config = &wxGetApp().preset_bundle->filaments.get_edited_preset().config;
     auto printer_config  = &wxGetApp().preset_bundle->printers.get_edited_preset().config;
diff --git a/src/slic3r/GUI/Plater.hpp b/src/slic3r/GUI/Plater.hpp
index 82e56e68e0..b60c0eb242 100644
--- a/src/slic3r/GUI/Plater.hpp
+++ b/src/slic3r/GUI/Plater.hpp
@@ -328,7 +328,8 @@ public:
     bool open_3mf_file(const fs::path &file_path);
     int  get_3mf_file_count(std::vector<fs::path> paths);
     void add_file();
-    void add_model(bool imperial_units = false, std::string fname = "");
+    // Returns false when no object was added (e.g. the user cancelled the load dialog).
+    bool add_model(bool imperial_units = false, std::string fname = "");
     void import_zip_archive();
     void import_sl1_archive();
     void extract_config_from_project();