diff --git a/src/slic3r/GUI/SelectMachine.cpp b/src/slic3r/GUI/SelectMachine.cpp
index 198bccecd..20b4ce2d6 100644
--- a/src/slic3r/GUI/SelectMachine.cpp
+++ b/src/slic3r/GUI/SelectMachine.cpp
@@ -1268,6 +1268,7 @@ bool SelectMachineDialog::do_ams_mapping(MachineObject *obj_)
         get_ams_mapping_result(ams_array, ams_array2, mapping_info);
         if (ams_array.empty()) {
             reset_ams_material();
+            updata_thumbnail_data_after_connected_printer(); // FIX:update cur plate thumbnail
             BOOST_LOG_TRIVIAL(info) << "ams_mapping_array=[]";
         } else {
             sync_ams_mapping_result(m_ams_mapping_result);