diff --git a/kernel/model/attribute_view.go b/kernel/model/attribute_view.go
index e00a29e49..a2e1985c6 100644
--- a/kernel/model/attribute_view.go
+++ b/kernel/model/attribute_view.go
@@ -58,6 +58,7 @@ func filterRows(ret *av.AttributeView) {
 				}
 			}
 		}
+		colIndexes = util.RemoveDuplicatedElem(colIndexes)
 
 		var rows []*av.Row
 		for _, row := range ret.Rows {
@@ -92,6 +93,7 @@ func sortRows(ret *av.AttributeView) {
 				}
 			}
 		}
+		colIndexes = util.RemoveDuplicatedElem(colIndexes)
 
 		sort.Slice(ret.Rows, func(i, j int) bool {
 			for _, index := range colIndexes {
@@ -408,12 +410,12 @@ func sortAttributeViewColumn(columnID, previousColumnID, avID string) (err error
 			break
 		}
 	}
-	attrView.Columns = util.InsertElement(attrView.Columns, previousIndex, col)
+	attrView.Columns = util.InsertElem(attrView.Columns, previousIndex, col)
 
 	for _, row := range attrView.Rows {
 		cel := row.Cells[index]
 		row.Cells = append(row.Cells[:index], row.Cells[index+1:]...)
-		row.Cells = util.InsertElement(row.Cells, previousIndex, cel)
+		row.Cells = util.InsertElem(row.Cells, previousIndex, cel)
 	}
 
 	err = av.SaveAttributeView(attrView)
@@ -446,7 +448,7 @@ func sortAttributeViewRow(rowID, previousRowID, avID string) (err error) {
 			break
 		}
 	}
-	attrView.Rows = util.InsertElement(attrView.Rows, previousIndex, row)
+	attrView.Rows = util.InsertElem(attrView.Rows, previousIndex, row)
 
 	err = av.SaveAttributeView(attrView)
 	return
diff --git a/kernel/util/misc.go b/kernel/util/misc.go
index 310f7fc29..feb3f4fcf 100644
--- a/kernel/util/misc.go
+++ b/kernel/util/misc.go
@@ -24,9 +24,21 @@ import (
 	"github.com/88250/lute/html"
 )
 
-// InsertElement inserts a new element value at the specified index position.
+// RemoveDuplicatedElem removes the duplicated elements from the slice.
+func RemoveDuplicatedElem(slice []int) (ret []int) {
+	allKeys := make(map[int]bool)
+	for _, item := range slice {
+		if _, value := allKeys[item]; !value {
+			allKeys[item] = true
+			ret = append(ret, item)
+		}
+	}
+	return
+}
+
+// InsertElem inserts a new element value at the specified index position.
 // 0 <= index <= len(a)
-func InsertElement[T any](ret []T, index int, value T) []T {
+func InsertElem[T any](ret []T, index int, value T) []T {
 	if len(ret) == index { // nil or empty slice or after last element
 		return append(ret, value)
 	}