Import step model crash

Hi, I try to load a 3D model (*.step) into Isaac Sim 2021.2.0. But it showed errors then crashed.
The errors:

2021-12-08 01:47:21 [54,520ms] [Fatal] [carb.crashreporter-breakpad.plugin] libcarb.events.plugin.so!carbOnPluginStartup
2021-12-08 01:47:21 [54,526ms] [Fatal] [carb.crashreporter-breakpad.plugin] libcarb.tasking.plugin.so!std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (carb::tasking::Scheduler::*)(unsigned int, int, carb::cpp20::latch*), carb::tasking::Scheduler*, unsigned int, int, carb::cpp20::latch*> > >::_M_run()
2021-12-08 01:47:21 [54,532ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpthread.so.0!funlockfile
2021-12-08 01:47:21 [54,533ms] [Fatal] [carb.crashreporter-breakpad.plugin] libTKMesh.so.7!BRepMesh_IncrementalMesh::Perform(opencascade::handle<IMeshTools_Context> const&)
2021-12-08 01:47:21 [54,534ms] [Fatal] [carb.crashreporter-breakpad.plugin] libTKMesh.so.7!BRepMesh_IncrementalMesh::Perform()
2021-12-08 01:47:21 [54,535ms] [Fatal] [carb.crashreporter-breakpad.plugin] libTKMesh.so.7!BRepMesh_IncrementalMesh::BRepMesh_IncrementalMesh(TopoDS_Shape const&, IMeshTools_Parameters const&)
2021-12-08 01:47:21 [54,536ms] [Fatal] [carb.crashreporter-breakpad.plugin] libcad_reader.so!cad_reader::CadReader::GetMesh(TDF_Label, unsigned long, cad_reader::Mesh&, cad_reader::Tesselation_Properties, bool)
2021-12-08 01:47:21 [54,537ms] [Fatal] [carb.crashreporter-breakpad.plugin] libomni.kit.importer.cad.plugin.so!carbOnPluginShutdown
2021-12-08 01:47:21 [54,538ms] [Fatal] [carb.crashreporter-breakpad.plugin] _cad_importer.cpython-37m-x86_64-linux-gnu.so!std::_Hashtable<std::string, std::pair<std::string const, void*>, std::allocator<std::pair<std::string const, void*> >, std::__detail::_Select1st, std::equal_to<std::string>, std::hash<std::string>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_rehash(unsigned long, unsigned long const&)
2021-12-08 01:47:21 [54,538ms] [Fatal] [carb.crashreporter-breakpad.plugin] _cad_importer.cpython-37m-x86_64-linux-gnu.so!std::_Hashtable<std::string, std::pair<std::string const, void*>, std::allocator<std::pair<std::string const, void*> >, std::__detail::_Select1st, std::equal_to<std::string>, std::hash<std::string>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_rehash(unsigned long, unsigned long const&)
2021-12-08 01:47:21 [54,545ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyMethodDef_RawFastCallKeywords
2021-12-08 01:47:21 [54,552ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyCFunction_FastCallKeywords
2021-12-08 01:47:21 [54,558ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,564ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalCodeWithName
2021-12-08 01:47:21 [54,571ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyFunction_FastCallKeywords
2021-12-08 01:47:21 [54,577ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,584ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalCodeWithName
2021-12-08 01:47:21 [54,590ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyFunction_FastCallKeywords
2021-12-08 01:47:21 [54,597ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,603ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!function_code_fastcall
2021-12-08 01:47:21 [54,610ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,616ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!function_code_fastcall
2021-12-08 01:47:21 [54,623ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,629ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyGen_Send
2021-12-08 01:47:21 [54,636ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,642ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyGen_Send
2021-12-08 01:47:21 [54,649ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,655ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyGen_Send
2021-12-08 01:47:21 [54,662ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,668ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyGen_Send
2021-12-08 01:47:21 [54,674ms] [Fatal] [carb.crashreporter-breakpad.plugin] _asyncio.cpython-37m-x86_64-linux-gnu.so!_init
2021-12-08 01:47:21 [54,681ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyObject_FastCallKeywords
2021-12-08 01:47:21 [54,687ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!context_run
2021-12-08 01:47:21 [54,694ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyMethodDef_RawFastCallDict
2021-12-08 01:47:21 [54,700ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyCFunction_FastCallDict
2021-12-08 01:47:21 [54,707ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,713ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!function_code_fastcall
2021-12-08 01:47:21 [54,720ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,726ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!function_code_fastcall
2021-12-08 01:47:21 [54,732ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,739ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!function_code_fastcall
2021-12-08 01:47:21 [54,745ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyEval_EvalFrameDefault
2021-12-08 01:47:21 [54,751ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!function_code_fastcall
2021-12-08 01:47:21 [54,758ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyFunction_FastCallDict
2021-12-08 01:47:21 [54,764ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!_PyObject_Call_Prepend
2021-12-08 01:47:21 [54,771ms] [Fatal] [carb.crashreporter-breakpad.plugin] libpython3.7m.so.1.0!PyObject_Call
2021-12-08 01:47:21 [54,777ms] [Fatal] [carb.crashreporter-breakpad.plugin] _events.cpython-37m-x86_64-linux-gnu.so!std::_Function_base::_Base_manager<pybind11::detail::type_caster<std::function<void (carb::events::IEvent*)>, void>::load(pybind11::handle, bool)::func_wrapper>::_M_manager(std::_Any_data&, std::_Any_data const&, std::_Manager_operation)
2021-12-08 01:47:21 [54,783ms] [Fatal] [carb.crashreporter-breakpad.plugin] _events.cpython-37m-x86_64-linux-gnu.so!_init
2021-12-08 01:47:21 [54,789ms] [Fatal] [carb.crashreporter-breakpad.plugin] libcarb.events.plugin.so!void std::this_thread::sleep_for<long, std::ratio<1l, 1000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000l> > const&)
2021-12-08 01:47:21 [54,794ms] [Fatal] [carb.crashreporter-breakpad.plugin] libomni.kit.loop-default.plugin.so!std::thread::_State_impl<std::thread::_Invoker<std::tuple<omni::kit::RunLoopThread::run()::{lambda()#1}> > >::~_State_impl()
2021-12-08 01:47:21 [54,800ms] [Fatal] [carb.crashreporter-breakpad.plugin] libomni.kit.app.plugin.so!_init
2021-12-08 01:47:21 [54,806ms] [Fatal] [carb.crashreporter-breakpad.plugin] libomni.kit.app.plugin.so!carbOnPluginPostShutdown
2021-12-08 01:47:21 [54,806ms] [Fatal] [carb.crashreporter-breakpad.plugin] kit!_init
2021-12-08 01:47:21 [54,813ms] [Fatal] [carb.crashreporter-breakpad.plugin] libc.so.6!__libc_start_main
2021-12-08 01:47:21 [54,813ms] [Fatal] [carb.crashreporter-breakpad.plugin] kit!_init

However, I can import this 3D model in Isaac Sim 2021.1.1 (previous version).

@q199493422 is it possible to provide the step file that causes the crash?

Sorry, I can’t. The 3D model is only for internal use.