diff --git a/src/slic3r/GUI/DoubleSlider.hpp b/src/slic3r/GUI/DoubleSlider.hpp
index 4c7c3e1bb..36fa7b660 100644
--- a/src/slic3r/GUI/DoubleSlider.hpp
+++ b/src/slic3r/GUI/DoubleSlider.hpp
@@ -146,7 +146,7 @@ struct ExtrudersSequence
     bool            is_mm_intervals     = true;
     double          interval_by_mm      = 3.0;
     int             interval_by_layers  = 10;
-    bool            random_sequence     { true };
+    bool            random_sequence     { false };
     bool            color_repetition    { false };
     std::vector<size_t>  extruders      = { 0 };
 
diff --git a/src/slic3r/GUI/ExtruderSequenceDialog.cpp b/src/slic3r/GUI/ExtruderSequenceDialog.cpp
index 4099d62c7..4a0600e53 100644
--- a/src/slic3r/GUI/ExtruderSequenceDialog.cpp
+++ b/src/slic3r/GUI/ExtruderSequenceDialog.cpp
@@ -91,7 +91,8 @@ ExtruderSequenceDialog::ExtruderSequenceDialog(const DoubleSlider::ExtrudersSequ
                                       double_to_string(sequence.interval_by_mm), 
                                       wxDefaultPosition, editor_sz, wxTE_PROCESS_ENTER);
 
-    auto change_value = [this]()
+    double min_layer_height = wxGetApp().preset_bundle->prints.get_edited_preset().config.opt_float("layer_height");
+    auto change_value = [this, min_layer_height]()
     {
         wxString str = m_interval_by_mm->GetValue();
         if (str.IsEmpty()) {
@@ -112,6 +113,11 @@ ExtruderSequenceDialog::ExtruderSequenceDialog(const DoubleSlider::ExtrudersSequ
         if (fabs(m_sequence.interval_by_layers - val) < 0.001)
             return;
 
+        if (val < min_layer_height) {
+            val = min_layer_height;
+            m_interval_by_mm->SetValue(double_to_string(val, 2));
+        }
+
         m_sequence.interval_by_mm = val;
     };