diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 5bc49ac7..6e487ae5 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -45,6 +45,8 @@ Other Changes:
   (before 1.71 tab bars fed the sum of current width which created feedback loops in certain situations).
 - TabBar: improved shrinking for large number of tabs to avoid leaving extraneous space on the right side.
   Individuals tabs are given integer-rounded width and remainder is spread between tabs left-to-right.
+- Columns, Separator: Fixed a bug where non-visible separators within columns would alter the next row position
+  differently than visible ones.
 - SliderScalar: Improved assert when using U32 or U64 types with a large v_max value. (#2765) [@loicmouton]
 - DragInt, DragFloat, DragScalar: Using (v_min > v_max) allows locking any edit to the value.
 - DragScalar: Fixed dragging of unsigned values on ARM cpu. (#2780) [@dBagrat]
diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index d5bc96c5..fd1d85a3 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -1451,7 +1451,7 @@ static void ShowDemoWindowWidgets()
         ImGui::PushID("set2");
         static float values2[4] = { 0.20f, 0.80f, 0.40f, 0.25f };
         const int rows = 3;
-        const ImVec2 small_slider_size(18, (160.0f-(rows-1)*spacing)/rows);
+        const ImVec2 small_slider_size(18, (float)(int)((160.0f - (rows - 1) * spacing) / rows));
         for (int nx = 0; nx < 4; nx++)
         {
             if (nx > 0) ImGui::SameLine();
diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index e3441ac0..35ce1436 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp
@@ -1261,7 +1261,10 @@ void ImGui::SeparatorEx(ImGuiSeparatorFlags flags)
         if (!ItemAdd(bb, 0))
         {
             if (columns)
+            {
                 PopColumnsBackground();
+                columns->LineMinY = window->DC.CursorPos.y;
+            }
             return;
         }
 
@@ -5624,7 +5627,7 @@ bool ImGui::ListBoxHeader(const char* label, int items_count, int height_in_item
     // We include ItemSpacing.y so that a list sized for the exact number of items doesn't make a scrollbar appears. We could also enforce that by passing a flag to BeginChild().
     ImVec2 size;
     size.x = 0.0f;
-    size.y = GetTextLineHeightWithSpacing() * height_in_items_f + style.FramePadding.y * 2.0f;
+    size.y = ImFloor(GetTextLineHeightWithSpacing() * height_in_items_f + style.FramePadding.y * 2.0f);
     return ListBoxHeader(label, size);
 }