diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 5178d0a783..8f445db32d 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -7216,6 +7216,8 @@ unsigned int Plater::priv::update_background_process(bool force_validation, bool
             this->partplate_list.get_curr_plate()->update_apply_result_invalid(false);
             notification_manager->set_all_slicing_errors_gray(true);
             notification_manager->close_notification_of_type(NotificationType::ValidateError);
+            notification_manager->bbl_close_3mf_warn_notification();
+
             if (invalidated != Print::APPLY_STATUS_UNCHANGED && background_processing_enabled())
                 return_state |= UPDATE_BACKGROUND_PROCESS_RESTART;
 
@@ -16496,6 +16498,7 @@ void Plater::validate_current_plate(bool& model_fits, bool& validate_error)
             p->partplate_list.get_curr_plate()->update_apply_result_invalid(false);
             p->notification_manager->set_all_slicing_errors_gray(true);
             p->notification_manager->close_notification_of_type(NotificationType::ValidateError);
+            p->notification_manager->bbl_close_3mf_warn_notification();
 
             // Pass a warning from validation and either show a notification,
             // or hide the old one.