diff --git a/eclipse-scout-core/src/table/Table.ts b/eclipse-scout-core/src/table/Table.ts
index a36ba357f40..d9cc7ec2d9d 100644
--- a/eclipse-scout-core/src/table/Table.ts
+++ b/eclipse-scout-core/src/table/Table.ts
@@ -5209,8 +5209,10 @@ export class Table extends Widget implements TableModel, Filterable<TableRow> {
   createTiles(rows: TableRow[]): Tile[] {
     return rows.map(row => {
       let tile = this.createTileForRow(row);
-      this._adaptTile(tile);
-      tile.rowId = row.id;
+      if (tile) {
+        this._adaptTile(tile);
+        tile.rowId = row.id;
+      }
       return tile;
     });
   }
diff --git a/eclipse-scout-core/src/table/TableTileGridMediator.ts b/eclipse-scout-core/src/table/TableTileGridMediator.ts
index 9acc9f675ee..300d8048cff 100644
--- a/eclipse-scout-core/src/table/TableTileGridMediator.ts
+++ b/eclipse-scout-core/src/table/TableTileGridMediator.ts
@@ -190,6 +190,7 @@ export class TableTileGridMediator extends Widget implements TableTileGridMediat
   }
 
   setTiles(tiles: ObjectOrChildModel<Tile>[]) {
+    tiles = [...new Set(tiles)].filter(Boolean); // remove duplicates and nulls
     this.setProperty('tiles', tiles);
   }
 
@@ -435,7 +436,7 @@ export class TableTileGridMediator extends Widget implements TableTileGridMediat
     this.table.loadingSupport.renderLoading(true);
   }
 
-  override destroy() {
+  protected override _destroy() {
     // destroy tiles manually since owner is the mediator thus the tileGrid can't destroy them
     this.tiles.forEach(tile => tile.destroy());
     this.tileAccordion.destroy();
@@ -528,7 +529,7 @@ export class TableTileGridMediator extends Widget implements TableTileGridMediat
     if (!this.table.tileMode || $.isEmptyObject(this.tilesMap)) {
       return;
     }
-    this.tiles = this.table.rows.map(row => this.tilesMap[row.id]);
+    this.tiles = [...new Set(this.table.rows.map(row => this.tilesMap[row.id]))].filter(Boolean); // remove duplicates and nulls
     this.tileAccordion.setTiles(this.tiles);
   }
 
diff --git a/eclipse-scout-core/src/table/TileTableHeaderBox.ts b/eclipse-scout-core/src/table/TileTableHeaderBox.ts
index da531e4569c..f56041f0591 100644
--- a/eclipse-scout-core/src/table/TileTableHeaderBox.ts
+++ b/eclipse-scout-core/src/table/TileTableHeaderBox.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2025 BSI Business Systems Integration AG
+ * Copyright (c) 2010, 2026 BSI Business Systems Integration AG
  *
  * This program and the accompanying materials are made
  * available under the terms of the Eclipse Public License 2.0
@@ -166,34 +166,34 @@ export class TileTableHeaderBox extends GroupBox implements TileTableHeaderBoxMo
   }
 
   protected _syncSortingGroupingFields() {
-    let primaryGroupingColumn = arrays.find(this.table.visibleColumns(), column => column.grouped && column.sortIndex === 0);
-    if (primaryGroupingColumn) {
-      this.groupByField.setValue(primaryGroupingColumn);
-    } else {
-      this.groupByField.setValue(null);
+    if (!this.isGrouping) {
+      let primaryGroupingColumn = arrays.find(this.table.visibleColumns(), column => column.grouped && column.sortIndex === 0);
+      if (primaryGroupingColumn) {
+        this.groupByField.setValue(primaryGroupingColumn);
+      } else {
+        this.groupByField.setValue(null);
+      }
     }
 
-    let primarySortingColumn = arrays.find(this.table.visibleColumns(), column => column.sortActive && column.sortIndex === 0);
-    if (primarySortingColumn) {
-      this.sortByField.setValue(this._findSortByLookupRowForKey({
-        column: primarySortingColumn,
-        asc: primarySortingColumn.sortAscending
-      }));
-    } else {
-      this.sortByField.setValue(null);
+    if (!this.isSorting) {
+      let primarySortingColumn = arrays.find(this.table.visibleColumns(), column => column.sortActive && column.sortIndex === 0);
+      if (primarySortingColumn) {
+        this.sortByField.setValue(this._findSortByLookupRowForKey({
+          column: primarySortingColumn,
+          asc: primarySortingColumn.sortAscending
+        }));
+      } else {
+        this.sortByField.setValue(null);
+      }
     }
   }
 
   protected _onTableGroup(event: TableGroupEvent) {
-    if (!this.isGrouping) {
-      this._syncSortingGroupingFields();
-    }
+    this._syncSortingGroupingFields();
   }
 
   protected _onTableSort(event: TableSortEvent) {
-    if (!this.isSorting) {
-      this._syncSortingGroupingFields();
-    }
+    this._syncSortingGroupingFields();
   }
 
   protected _onTableColumnStructureChanged(event: TableColumnStructureChangedEvent) {
diff --git a/org.eclipse.scout.rt.client/src/main/java/org/eclipse/scout/rt/client/ui/basic/table/AbstractTileTableHeader.java b/org.eclipse.scout.rt.client/src/main/java/org/eclipse/scout/rt/client/ui/basic/table/AbstractTileTableHeader.java
index 76b4e8737b7..a5a327adb87 100644
--- a/org.eclipse.scout.rt.client/src/main/java/org/eclipse/scout/rt/client/ui/basic/table/AbstractTileTableHeader.java
+++ b/org.eclipse.scout.rt.client/src/main/java/org/eclipse/scout/rt/client/ui/basic/table/AbstractTileTableHeader.java
@@ -30,6 +30,7 @@
 import org.eclipse.scout.rt.platform.util.CollectionUtility;
 import org.eclipse.scout.rt.platform.util.ImmutablePair;
 import org.eclipse.scout.rt.platform.util.ObjectUtility;
+import org.eclipse.scout.rt.shared.AbstractIcons;
 import org.eclipse.scout.rt.shared.data.basic.FontSpec;
 import org.eclipse.scout.rt.shared.services.lookup.ILookupCall;
 import org.eclipse.scout.rt.shared.services.lookup.ILookupRow;
@@ -308,8 +309,11 @@ protected List<? extends ILookupRow<ImmutablePair<IColumn, Boolean>>> execCreate
       for (IColumn col : getTable().getColumns()) {
         if (col.isVisible() && isColumnTypeAllowedForSorting(col)) {
           String colLabel = ObjectUtility.nvl(col.getHeaderCell().getText(), col.getHeaderCell().getTooltipText());
-          lookupRows.add(new LookupRow<>(new ImmutablePair<>(col, true), colLabel + " ↑")); // U+2191
-          lookupRows.add(new LookupRow<>(new ImmutablePair<>(col, false), colLabel + " ↓")); // U+2193
+          lookupRows.add(new LookupRow<>(new ImmutablePair<>(col, true), colLabel + " (" + TEXTS.get("ascending") + ")")
+              .withIconId(AbstractIcons.LongArrowUpBold));
+          lookupRows.add(new LookupRow<>(new ImmutablePair<>(col, false), colLabel + " (" + TEXTS.get("descending") + ")")
+              .withIconId(AbstractIcons.LongArrowDownBold)
+          );
         }
       }
 
diff --git a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts.properties b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts.properties
index 75c1e810a8d..cd08aa25f29 100644
--- a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts.properties
+++ b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts.properties
@@ -351,5 +351,7 @@ YearToDateTwoYearsBefore=two years ago
 Yes=Yes
 YesButton=Yes
 and=and
+ascending=ascending
+descending=descending
 from=from
 to=to
diff --git a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_de.properties b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_de.properties
index dfdfbbb1a95..d701473607f 100644
--- a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_de.properties
+++ b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_de.properties
@@ -351,5 +351,7 @@ YearToDateTwoYearsBefore=vor zwei Jahren
 Yes=Ja
 YesButton=Ja
 and=und
+ascending=aufsteigend
+descending=absteigend
 from=von
 to=bis
diff --git a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_fr.properties b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_fr.properties
index e2beb07833d..7cc3a472c39 100644
--- a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_fr.properties
+++ b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_fr.properties
@@ -351,5 +351,7 @@ YearToDateTwoYearsBefore=il y a deux ans
 Yes=Oui
 YesButton=Oui
 and=et
+ascending=croissant
+descending=décroissant
 from=de
 to=à
diff --git a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_it.properties b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_it.properties
index f7d523253a6..89941c227e3 100644
--- a/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_it.properties
+++ b/org.eclipse.scout.rt.nls/src/main/resources/org/eclipse/scout/rt/nls/texts/ScoutTexts_it.properties
@@ -351,5 +351,7 @@ YearToDateTwoYearsBefore=due anni fa
 Yes=Sì
 YesButton=Sì
 and=e
+ascending=crescente
+descending=decrescente
 from=da
 to=a