diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 66ac7a9798..c201d4018b 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -115,6 +115,16 @@ bool GUI_App::OnInit()
     update_mode();
     SetTopWindow(mainframe);
 
+    CallAfter([this]() {
+        // temporary workaround for the correct behavior of the Scrolled sidebar panel 
+        auto& panel = sidebar();
+        if (panel.obj_list()->GetMinHeight() > 200) {
+            wxWindowUpdateLocker noUpdates_sidebar(&panel);
+            panel.obj_list()->SetMinSize(wxSize(-1, 200));
+            panel.Layout();
+        }
+    });
+
     // This makes CallAfter() work
     Bind(wxEVT_IDLE, [this](wxIdleEvent& event)
     {
diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index a616307ba6..01815cfd65 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -83,7 +83,10 @@ ObjectList::~ObjectList()
 
 void ObjectList::create_objects_ctrl()
 {
-    SetMinSize(wxSize(-1, 150)); // TODO - Set correct height according to the opened/closed objects
+    // temporary workaround for the correct behavior of the Scrolled sidebar panel:
+    // 1. set a height of the list to some big value 
+    // 2. change it to the normal min value (200) after first whole App updating/layouting
+    SetMinSize(wxSize(-1, 1500));   // #ys_FIXME 
 
     m_sizer = new wxBoxSizer(wxVERTICAL);
     m_sizer->Add(this, 1, wxGROW | wxLEFT, 20);