diff --git a/src/BambuStudio.cpp b/src/BambuStudio.cpp
index 1197e0ced5..2cf7e053ec 100644
--- a/src/BambuStudio.cpp
+++ b/src/BambuStudio.cpp
@@ -311,11 +311,17 @@ static PrinterTechnology get_printer_technology(const DynamicConfig &config)
     g_cli_callback_mgr.stop();\
     boost::nowide::cout.flush();\
     boost::nowide::cerr.flush();\
+    for (Model &model : m_models) {\
+       model.remove_backup_path_if_exist();\
+    }\
     return(ret);}
 #else
 #define flush_and_exit(ret)     { boost::nowide::cout << __FUNCTION__ << " found error, exit" << std::endl;\
     boost::nowide::cout.flush();\
     boost::nowide::cerr.flush();\
+    for (Model &model : m_models) {\
+       model.remove_backup_path_if_exist();\
+    }\
     return(ret);}
 #endif
 
@@ -2371,6 +2377,9 @@ int CLI::run(int argc, char **argv)
     g_cli_callback_mgr.stop();
 #endif
 
+    for (Model &model : m_models) {
+	model.remove_backup_path_if_exist();
+    }
     //BBS: flush logs
     BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ", Finished" << std::endl;
     boost::nowide::cout.flush();
diff --git a/src/libslic3r/Model.cpp b/src/libslic3r/Model.cpp
index cff60e72ce..d710efd742 100644
--- a/src/libslic3r/Model.cpp
+++ b/src/libslic3r/Model.cpp
@@ -790,9 +790,11 @@ std::string Model::get_backup_path()
         buf << this->id().id;
 
         backup_path = parent_path.string() + buf.str();
+        BOOST_LOG_TRIVIAL(info) << boost::format("model %1%, id %2%, backup_path empty, set to %3%")%this%this->id().id%backup_path;
         boost::filesystem::path temp_path(backup_path);
         if (boost::filesystem::exists(temp_path))
         {
+            BOOST_LOG_TRIVIAL(info) << boost::format("model %1%, id %2%, remove previous %3%")%this%this->id().id%backup_path;
             boost::filesystem::remove_all(temp_path);
         }
     }
@@ -815,6 +817,19 @@ std::string Model::get_backup_path()
     return backup_path;
 }
 
+void Model::remove_backup_path_if_exist()
+{
+    if (!backup_path.empty()) {
+        boost::filesystem::path temp_path(backup_path);
+        if (boost::filesystem::exists(temp_path))
+        {
+            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format("model %1%, id %2% remove backup_path %3%")%this%this->id().id%backup_path;
+            boost::filesystem::remove_all(temp_path);
+        }
+	backup_path.clear();
+    }
+}
+
 std::string Model::get_backup_path(const std::string &sub_path)
 {
     auto path = get_backup_path() + "/" + sub_path;
@@ -837,9 +852,12 @@ void Model::set_backup_path(std::string const& path)
         backup_path.clear();
         return;
     }
-    if (!backup_path.empty())
+    if (!backup_path.empty()) {
+        BOOST_LOG_TRIVIAL(info) << __FUNCTION__<<boost::format(", model %1%, id %2%, remove previous backup %3%")%this%this->id().id%backup_path;
         Slic3r::remove_backup(*this, true);
+    }
     backup_path = path;
+    BOOST_LOG_TRIVIAL(info) << __FUNCTION__<<boost::format(", model %1%, id %2%, set backup to %3%")%this%this->id().id%backup_path;
 }
 
 void Model::load_from(Model& model)
diff --git a/src/libslic3r/Model.hpp b/src/libslic3r/Model.hpp
index c682af16c0..d12bf1f7d9 100644
--- a/src/libslic3r/Model.hpp
+++ b/src/libslic3r/Model.hpp
@@ -1433,6 +1433,7 @@ public:
     void          load_from(Model & model);
     bool          is_need_backup() { return need_backup;  }
     void          set_need_backup();
+    void          remove_backup_path_if_exist();
 
     // Checks if any of objects is painted using the fdm support painting gizmo.
     bool          is_fdm_support_painted() const;