diff --git a/api/handler/object_list_test.go b/api/handler/object_list_test.go
index ffde199..06cfd6d 100644
--- a/api/handler/object_list_test.go
+++ b/api/handler/object_list_test.go
@@ -119,7 +119,7 @@ func TestListObjectsVersionsSkipLogTaggingNodesError(t *testing.T) {
 }
 
 func makeAllTreeObjectsOld(hc *handlerContext, bktInfo *data.BucketInfo) {
-	nodes, err := hc.treeMock.GetSubTree(hc.Context(), bktInfo, "version", []uint64{0}, 0)
+	nodes, err := hc.treeMock.GetSubTree(hc.Context(), bktInfo, "version", []uint64{0}, 0, true)
 	require.NoError(hc.t, err)
 
 	for _, node := range nodes {
diff --git a/internal/frostfs/services/pool_wrapper.go b/internal/frostfs/services/pool_wrapper.go
index a1ee198..a96b198 100644
--- a/internal/frostfs/services/pool_wrapper.go
+++ b/internal/frostfs/services/pool_wrapper.go
@@ -102,14 +102,18 @@ func (w *PoolWrapper) GetNodes(ctx context.Context, prm *tree.GetNodesParams) ([
 	return res, nil
 }
 
-func (w *PoolWrapper) GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32) ([]tree.NodeResponse, error) {
+func (w *PoolWrapper) GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32, sort bool) ([]tree.NodeResponse, error) {
+	order := treepool.NoneOrder
+	if sort {
+		order = treepool.AscendingOrder
+	}
 	poolPrm := treepool.GetSubTreeParams{
 		CID:         bktInfo.CID,
 		TreeID:      treeID,
 		RootID:      rootID,
 		Depth:       depth,
 		BearerToken: getBearer(ctx, bktInfo),
-		Order:       treepool.AscendingOrder,
+		Order:       order,
 	}
 	if len(rootID) == 1 && rootID[0] == 0 {
 		// storage node interprets 'nil' value as []uint64{0}
diff --git a/pkg/service/tree/tree.go b/pkg/service/tree/tree.go
index 79a4fe1..2329179 100644
--- a/pkg/service/tree/tree.go
+++ b/pkg/service/tree/tree.go
@@ -33,7 +33,7 @@ type (
 	// Each method must return ErrNodeNotFound or ErrNodeAccessDenied if relevant.
 	ServiceClient interface {
 		GetNodes(ctx context.Context, p *GetNodesParams) ([]NodeResponse, error)
-		GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32) ([]NodeResponse, error)
+		GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32, sort bool) ([]NodeResponse, error)
 		GetSubTreeStream(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32) (SubTreeStream, error)
 		AddNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, parent uint64, meta map[string]string) (uint64, error)
 		AddNodeByPath(ctx context.Context, bktInfo *data.BucketInfo, treeID string, path []string, meta map[string]string) (uint64, error)
@@ -751,7 +751,7 @@ func (c *Tree) getTreeNode(ctx context.Context, bktInfo *data.BucketInfo, nodeID
 }
 
 func (c *Tree) getTreeNodes(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64, keys ...string) (map[string]*treeNode, error) {
-	subtree, err := c.service.GetSubTree(ctx, bktInfo, versionTree, []uint64{nodeID}, 2)
+	subtree, err := c.service.GetSubTree(ctx, bktInfo, versionTree, []uint64{nodeID}, 2, false)
 	if err != nil {
 		return nil, err
 	}
@@ -1147,7 +1147,7 @@ func (c *Tree) getSubTreeByPrefix(ctx context.Context, bktInfo *data.BucketInfo,
 		return nil, "", err
 	}
 
-	subTree, err := c.service.GetSubTree(ctx, bktInfo, treeID, rootID, 2)
+	subTree, err := c.service.GetSubTree(ctx, bktInfo, treeID, rootID, 2, false)
 	if err != nil {
 		if errors.Is(err, layer.ErrNodeNotFound) {
 			return nil, "", nil
@@ -1305,7 +1305,11 @@ func (c *Tree) GetMultipartUploadsByPrefix(ctx context.Context, bktInfo *data.Bu
 }
 
 func (c *Tree) getSubTreeMultipartUploads(ctx context.Context, bktInfo *data.BucketInfo, nodeID []uint64, parentFilePath string) ([]*data.MultipartInfo, error) {
-	subTree, err := c.service.GetSubTree(ctx, bktInfo, systemTree, nodeID, maxGetSubTreeDepth)
+	// sorting in getSubTree leads to skipping nodes that doesn't have FileName attribute
+	// so when we are only interested in multipart nodes, we can set this flag
+	// (despite we sort multiparts in above layer anyway)
+	// to skip its children (parts) that don't have FileName
+	subTree, err := c.service.GetSubTree(ctx, bktInfo, systemTree, nodeID, maxGetSubTreeDepth, true)
 	if err != nil {
 		return nil, err
 	}
@@ -1394,7 +1398,7 @@ func (c *Tree) GetMultipartUpload(ctx context.Context, bktInfo *data.BucketInfo,
 }
 
 func (c *Tree) AddPart(ctx context.Context, bktInfo *data.BucketInfo, multipartNodeID uint64, info *data.PartInfo) (oldObjIDToDelete oid.ID, err error) {
-	parts, err := c.service.GetSubTree(ctx, bktInfo, systemTree, []uint64{multipartNodeID}, 2)
+	parts, err := c.service.GetSubTree(ctx, bktInfo, systemTree, []uint64{multipartNodeID}, 2, false)
 	if err != nil {
 		return oid.ID{}, err
 	}
@@ -1444,7 +1448,7 @@ func (c *Tree) AddPart(ctx context.Context, bktInfo *data.BucketInfo, multipartN
 }
 
 func (c *Tree) GetParts(ctx context.Context, bktInfo *data.BucketInfo, multipartNodeID uint64) ([]*data.PartInfo, error) {
-	parts, err := c.service.GetSubTree(ctx, bktInfo, systemTree, []uint64{multipartNodeID}, 2)
+	parts, err := c.service.GetSubTree(ctx, bktInfo, systemTree, []uint64{multipartNodeID}, 2, false)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/service/tree/tree_client_in_memory.go b/pkg/service/tree/tree_client_in_memory.go
index 55a81a7..4c27fd7 100644
--- a/pkg/service/tree/tree_client_in_memory.go
+++ b/pkg/service/tree/tree_client_in_memory.go
@@ -234,7 +234,7 @@ func (c *ServiceClientMemory) GetNodes(_ context.Context, p *GetNodesParams) ([]
 	return res2, nil
 }
 
-func (c *ServiceClientMemory) GetSubTree(_ context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32) ([]NodeResponse, error) {
+func (c *ServiceClientMemory) GetSubTree(_ context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32, sort bool) ([]NodeResponse, error) {
 	cnr, ok := c.containers[bktInfo.CID.EncodeToString()]
 	if !ok {
 		return nil, nil
@@ -254,6 +254,10 @@ func (c *ServiceClientMemory) GetSubTree(_ context.Context, bktInfo *data.Bucket
 		return nil, ErrNodeNotFound
 	}
 
+	if sort {
+		sortNode(tr.treeData)
+	}
+
 	// we depth-1 in case of uint32 and 0 as mark to get all subtree leads to overflow and depth is getting quite big to walk all tree levels
 	return node.listNodes(nil, depth-1), nil
 }