diff --git a/kernel/model/attribute_view.go b/kernel/model/attribute_view.go
index d2793445d..f90868e69 100644
--- a/kernel/model/attribute_view.go
+++ b/kernel/model/attribute_view.go
@@ -180,15 +180,11 @@ func (tx *Transaction) doHideAttrViewGroup(operation *Operation) (ret *TxErr) {
 func hideAttributeViewGroup(avID, blockID, groupID string, hidden int) (err error) {
 	attrView, err := av.ParseAttributeView(avID)
 	if err != nil {
-		return err
+		return
 	}
 
 	view, err := getAttrViewViewByBlockID(attrView, blockID)
 	if err != nil {
-		return err
-	}
-
-	if nil == view.Group {
 		return
 	}
 
@@ -202,9 +198,9 @@ func hideAttributeViewGroup(avID, blockID, groupID string, hidden int) (err erro
 	err = av.SaveAttributeView(attrView)
 	if err != nil {
 		logging.LogErrorf("save attribute view [%s] failed: %s", avID, err)
-		return err
+		return
 	}
-	return nil
+	return
 }
 
 func (tx *Transaction) doFoldAttrViewGroup(operation *Operation) (ret *TxErr) {
diff --git a/kernel/model/transaction.go b/kernel/model/transaction.go
index 0734a05eb..0f65692a2 100644
--- a/kernel/model/transaction.go
+++ b/kernel/model/transaction.go
@@ -1440,6 +1440,19 @@ func (tx *Transaction) doUpdate(operation *Operation) (ret *TxErr) {
 
 	cache.PutBlockIAL(updatedNode.ID, parse.IAL2Map(updatedNode.KramdownIAL))
 
+	if ast.NodeHTMLBlock == updatedNode.Type {
+		content := string(updatedNode.Tokens)
+		// 剔除连续的空行（包括空行内包含空格的情况） https://github.com/siyuan-note/siyuan/issues/15377
+		var newLines []string
+		lines := strings.Split(content, "\n")
+		for _, line := range lines {
+			if strings.TrimSpace(line) != "" {
+				newLines = append(newLines, line)
+			}
+		}
+		updatedNode.Tokens = []byte(strings.Join(newLines, "\n"))
+	}
+
 	// 替换为新节点
 	oldNode.InsertAfter(updatedNode)
 	oldNode.Unlink()