diff --git a/.gitignore b/.gitignore
index e0fad7f..9fc0cb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,5 @@ build/
 *.json
 result*
 data/cad
-misc
\ No newline at end of file
+misc
+.venv/
\ No newline at end of file
diff --git a/cpp_to_py/io_parser/gp/GPDatabase.cpp b/cpp_to_py/io_parser/gp/GPDatabase.cpp
index 574a03b..5a762f2 100644
--- a/cpp_to_py/io_parser/gp/GPDatabase.cpp
+++ b/cpp_to_py/io_parser/gp/GPDatabase.cpp
@@ -487,7 +487,7 @@ std::vector<torch::Tensor> GPDatabase::getHyperedgeInfoTensor() {
     }
     auto hyperedge_index = torch::cat({hyperedge_list.unsqueeze(0), hyperedge_index_helper.unsqueeze(0)}, 0);
 
-    auto new_order_idx = torch::argsort(hyperedge_index.index({0}), 0);
+    auto new_order_idx = torch::argsort(hyperedge_index.index({0}), 0, false);
     hyperedge_index = hyperedge_index.index({torch::indexing::Slice(), new_order_idx});
 
     return {hyperedge_index, hyperedge_list, hyperedge_list_end};