diff --git a/kernel/model/import.go b/kernel/model/import.go
index 4d69a3a1a..1745c6d0d 100644
--- a/kernel/model/import.go
+++ b/kernel/model/import.go
@@ -67,7 +67,7 @@ func HTML2Markdown(htmlStr string, luteEngine *lute.Lute) (markdown string, with
 }
 
 func HTML2Tree(htmlStr string, luteEngine *lute.Lute) (tree *parse.Tree, withMath bool) {
-	htmlStr = util.RemoveInvalid(htmlStr)
+	htmlStr = gulu.Str.RemovePUA(htmlStr)
 	assetDirPath := filepath.Join(util.DataDir, "assets")
 	tree = luteEngine.HTML2Tree(htmlStr)
 	ast.Walk(tree.Root, func(n *ast.Node, entering bool) ast.WalkStatus {
diff --git a/kernel/model/search.go b/kernel/model/search.go
index a18864e10..521800df7 100644
--- a/kernel/model/search.go
+++ b/kernel/model/search.go
@@ -1412,7 +1412,6 @@ func fullTextSearchCountByRegexp(exp, boxFilter, pathFilter, typeFilter, ignoreF
 }
 
 func fullTextSearchByFTS(query, boxFilter, pathFilter, typeFilter, ignoreFilter, orderBy string, beforeLen, page, pageSize int) (ret []*Block, matchedBlockCount, matchedRootCount int) {
-	query = stringQuery(query)
 	table := "blocks_fts" // 大小写敏感
 	if !Conf.Search.CaseSensitive {
 		table = "blocks_fts_case_insensitive"
diff --git a/kernel/util/path.go b/kernel/util/path.go
index 0669d05d1..a9617da84 100644
--- a/kernel/util/path.go
+++ b/kernel/util/path.go
@@ -38,6 +38,9 @@ var (
 )
 
 func GetTreeID(treePath string) string {
+	if strings.Contains(treePath, "\\") {
+		return strings.TrimSuffix(filepath.Base(treePath), ".sy")
+	}
 	return strings.TrimSuffix(path.Base(treePath), ".sy")
 }