diff --git a/kernel/model/transaction.go b/kernel/model/transaction.go
index 39f4802114a..0d258f42a34 100644
--- a/kernel/model/transaction.go
+++ b/kernel/model/transaction.go
@@ -811,35 +811,48 @@ func removeAvBlockRel(node *ast.Node) {
 }
 
 func syncDelete2AttributeView(node *ast.Node) {
-	avs := node.IALAttr(av.NodeAttrNameAvs)
-	if "" == avs {
-		return
-	}
-
-	avIDs := strings.Split(avs, ",")
-	for _, avID := range avIDs {
-		attrView, parseErr := av.ParseAttributeView(avID)
-		if nil != parseErr {
-			continue
+	changedAvIDs := hashset.New()
+	ast.Walk(node, func(n *ast.Node, entering bool) ast.WalkStatus {
+		if !entering || !n.IsBlock() {
+			return ast.WalkContinue
 		}
 
-		changedAv := false
-		blockValues := attrView.GetBlockKeyValues()
-		if nil == blockValues {
-			continue
+		avs := n.IALAttr(av.NodeAttrNameAvs)
+		if "" == avs {
+			return ast.WalkContinue
 		}
 
-		for i, blockValue := range blockValues.Values {
-			if blockValue.Block.ID == node.ID {
-				blockValues.Values = append(blockValues.Values[:i], blockValues.Values[i+1:]...)
-				changedAv = true
-				break
+		avIDs := strings.Split(avs, ",")
+		for _, avID := range avIDs {
+			attrView, parseErr := av.ParseAttributeView(avID)
+			if nil != parseErr {
+				continue
+			}
+
+			changedAv := false
+			blockValues := attrView.GetBlockKeyValues()
+			if nil == blockValues {
+				continue
+			}
+
+			for i, blockValue := range blockValues.Values {
+				if blockValue.Block.ID == n.ID {
+					blockValues.Values = append(blockValues.Values[:i], blockValues.Values[i+1:]...)
+					changedAv = true
+					break
+				}
+			}
+
+			if changedAv {
+				av.SaveAttributeView(attrView)
+				changedAvIDs.Add(avID)
 			}
 		}
-		if changedAv {
-			av.SaveAttributeView(attrView)
-			util.BroadcastByType("protyle", "refreshAttributeView", 0, "", map[string]interface{}{"id": avID})
-		}
+		return ast.WalkContinue
+	})
+
+	for _, avID := range changedAvIDs.Values() {
+		util.BroadcastByType("protyle", "refreshAttributeView", 0, "", map[string]interface{}{"id": avID})
 	}
 }