# Paraview 5.10.1 automatically crashes with MFIX built-in case
**URL:** https://discourse.paraview.org/t/paraview-5-10-1-automatically-crashes-with-mfix-built-in-case/17645
**Category:** ParaView Support
**Created:** [July 2, 2026, 8:46am UTC](https://discourse.paraview.org/t/paraview-5-10-1-automatically-crashes-with-mfix-built-in-case/17645 "2026-07-02T08:46:32Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ultrayi](https://discourse.paraview.org/u/ultrayi)
#### Post date: [July 2, 2026, 8:46am UTC](https://discourse.paraview.org/t/paraview-5-10-1-automatically-crashes-with-mfix-built-in-case/17645/1 "2026-07-02T08:46:32Z")
ParaView keeps crashing whenever I try to “apply” after open the RES output files generated by the built-in Fluid Bed 2D case in MFIX.
OS： Win 10/ Win 11
Thanks a lot.
[FLUID\_BED\_TFM\_2D.RES](https://discourse.paraview.org/uploads/short-url/s7wyqj7fDI9eXsG13V58pM4N1SG.RES) (2.1 MB)
RES file name: FLUID\_BED\_TFM\_2D.RES ( not the one that include retarted data)
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 2, 2026, 1:55pm UTC](https://discourse.paraview.org/t/paraview-5-10-1-automatically-crashes-with-mfix-built-in-case/17645/2 "2026-07-02T13:55:53Z")
Confirmed crash on ParaView 6.1.1 on macOS.
Stack trace
```auto
Thread 0 Crashed:: paraview Dispatch queue: com.apple.main-thread
0 libvtkIOGeometry-pv6.1.6.1.dylib 0x125ced08c vtkMFIXReader::GetAllTimes(vtkInformationVector*) + 640
1 libvtkIOGeometry-pv6.1.6.1.dylib 0x125ce0474 vtkMFIXReader::RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 812
2 libvtkCommonExecutionModel-pv6.1.6.1.dylib 0x1064b9308 vtkExecutive::CallAlgorithm(vtkInformation*, int, vtkInformationVector**, vtkInformationVector*) + 84
3 libvtkCommonExecutionModel-pv6.1.6.1.dylib 0x106525c60 vtkStreamingDemandDrivenPipeline::ExecuteInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 56
4 libvtkCommonExecutionModel-pv6.1.6.1.dylib 0x1064af6c0 vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 640
5 libvtkCommonExecutionModel-pv6.1.6.1.dylib 0x106524ccc vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 908
6 libvtkRemotingServerManager-pv6.1.6.1.dylib 0x1042a0e88 vtkSISourceProxy::UpdatePipelineInformation() + 188
7 libvtkRemotingApplication-pv6.1.6.1.dylib 0x110244c24 vtkSISourceProxyCommand(vtkClientServerInterpreter*, vtkObjectBase*, char const*, vtkClientServerStream const&, vtkClientServerStream&, void*) + 1568
8 libvtkRemotingClientServerStream-pv6.1.6.1.dylib 0x10323c768 vtkClientServerInterpreter::ProcessCommandInvoke(vtkClientServerStream const&, int) + 260
9 libvtkRemotingClientServerStream-pv6.1.6.1.dylib
```
Would you mind creating an issue for this over at [gitlab.kitware.com/paraview/paraview](http://gitlab.kitware.com/paraview/paraview)? Thanks.