diff --git a/src/slic3r/GUI/BaseTransparentDPIFrame.cpp b/src/slic3r/GUI/BaseTransparentDPIFrame.cpp
index 2b8ea95586..596525d546 100644
--- a/src/slic3r/GUI/BaseTransparentDPIFrame.cpp
+++ b/src/slic3r/GUI/BaseTransparentDPIFrame.cpp
@@ -199,10 +199,12 @@ void BaseTransparentDPIFrame::on_timer(wxTimerEvent &event)
 
 void BaseTransparentDPIFrame::call_start_gradual_disappearance()//for ok or cancel button
 {
-    m_enter_window_valid = false;
-    m_display_stage      = 1;
-    m_refresh_timer->Start(ANIMATION_REFRESH_INTERVAL);
-    start_gradual_disappearance();
+    if (m_enter_window_valid) {
+        m_enter_window_valid = false;
+        m_display_stage      = 1;
+        m_refresh_timer->Start(ANIMATION_REFRESH_INTERVAL);
+        start_gradual_disappearance();
+    }
 }
 
 void BaseTransparentDPIFrame::restart() {
diff --git a/src/slic3r/GUI/SyncAmsInfoDialog.cpp b/src/slic3r/GUI/SyncAmsInfoDialog.cpp
index 76af9e72ca..5851f1a013 100644
--- a/src/slic3r/GUI/SyncAmsInfoDialog.cpp
+++ b/src/slic3r/GUI/SyncAmsInfoDialog.cpp
@@ -4305,8 +4305,7 @@ void SyncNozzleAndAmsDialog::deal_ok() {
 
 void SyncNozzleAndAmsDialog::deal_cancel()
 {
-    //m_move_to_target_gradual_disappearance = true;
-    call_start_gradual_disappearance();
+    on_hide();
 }
 
 void SyncNozzleAndAmsDialog::update_info(InputInfo &info) {
@@ -4333,7 +4332,7 @@ FinishSyncAmsDialog::FinishSyncAmsDialog(InputInfo &input_info)
 FinishSyncAmsDialog::~FinishSyncAmsDialog() {}
 
 void FinishSyncAmsDialog::deal_ok() {
-    call_start_gradual_disappearance();
+    on_hide();
 }
 
 void FinishSyncAmsDialog::update_info(InputInfo &info)