diff --git a/core/src/com/unciv/ui/components/SortableGrid.kt b/core/src/com/unciv/ui/components/SortableGrid.kt
index ed26ffcdcb..b9a2932c57 100644
--- a/core/src/com/unciv/ui/components/SortableGrid.kt
+++ b/core/src/com/unciv/ui/components/SortableGrid.kt
@@ -87,6 +87,10 @@ class SortableGrid<IT, ACT, CT: ISortableGridContentProvider<IT, ACT>> (
     private val totalsRow = Table(skin)
 
     init {
+        require (!separateHeader || columns.none { it.expandX }) {
+            "SortableGrid currently does not support separateHeader combined with expanding columns"
+        }
+
         headerRow.defaults().pad(paddingVert, paddingHorz).minWidth(iconSize)
         details.defaults().pad(paddingVert, paddingHorz).minWidth(iconSize)
         totalsRow.defaults().pad(paddingVert, paddingHorz).minWidth(iconSize)
diff --git a/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTab.kt b/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTab.kt
index 95a9484524..ca6652a6bb 100644
--- a/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTab.kt
+++ b/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTab.kt
@@ -36,13 +36,21 @@ class CityOverviewTab(
         separateHeader = true
     ) {
         header, details, totals ->
+        // Notes: header.parent is the LinkedScrollPane of TabbedPager. Its linked twin is details.parent.parent.parent however!
+        // horizontal "slack" if available width > content width is taken up between SortableGrid and CityOverviewTab for the details,
+        // but not so for the header. We must force the LinkedScrollPane somehow (no? how?) to do so - or the header Table itself.
+
         equalizeColumns(details, header, totals)
+        // todo Kludge! Positioning and alignment of the header Table within its parent has quirks when content width < stage width
+        //      This code should likely be included in SortableGrid anyway?
+        if (header.width < this.width) header.width = this.width
         this.validate()
     }
 
     override fun getFixedContent() = grid.getHeader()
 
     init {
+        top()
         add(grid)
     }
 }
diff --git a/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTabColumn.kt b/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTabColumn.kt
index d23b443472..54c863e60b 100644
--- a/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTabColumn.kt
+++ b/core/src/com/unciv/ui/screens/overviewscreen/CityOverviewTabColumn.kt
@@ -85,7 +85,7 @@ enum class CityOverviewTabColumn : ISortableGridContentProvider<City, EmpireOver
 
     Construction {
         override val align = Align.left
-        override val expandX = true
+        override val expandX = false
         override val equalizeHeight = true
         override val headerTip = "Current construction"
         override val defaultDescending = false