diff --git a/src/libslic3r/PresetBundle.cpp b/src/libslic3r/PresetBundle.cpp
index c1f859b5c1..da08a08ed5 100644
--- a/src/libslic3r/PresetBundle.cpp
+++ b/src/libslic3r/PresetBundle.cpp
@@ -241,12 +241,12 @@ PresetsConfigSubstitutions PresetBundle::load_presets(AppConfig &config, Forward
     //BBS: change system config to json
     std::tie(substitutions, errors_cummulative) = this->load_system_presets_from_json(substitution_rule);
 
-    // Load default user presets always
-    load_user_presets(DEFAULT_USER_FOLDER_NAME, substitution_rule);
     // BBS load preset from user's folder, load system default if
     // BBS: change directories by design
     std::string dir_user_presets = config.get("preset_folder");
-    if (!dir_user_presets.empty()) {
+    if (dir_user_presets.empty()) {
+        load_user_presets(DEFAULT_USER_FOLDER_NAME, substitution_rule);
+    } else {
         load_user_presets(dir_user_presets, substitution_rule);
     }
 
diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index f9cfe30592..8a316cf89a 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -4425,6 +4425,9 @@ void GUI_App::start_sync_user_preset(bool load_immediately, bool with_progress_d
 {
     if (!m_agent || !m_agent->is_user_login()) return;
 
+    if (load_immediately)
+        remove_user_presets();
+
     enable_user_preset_folder(true);
 
     // has already start sync
@@ -4541,6 +4544,9 @@ void GUI_App::stop_sync_user_preset()
         remove_user_presets();
     enable_user_preset_folder(false);
 
+    preset_bundle->load_user_presets(DEFAULT_USER_FOLDER_NAME, ForwardCompatibilitySubstitutionRule::Enable);
+    mainframe->update_side_preset_ui();
+
     if (!enable_sync)
         return;