# Debugging OpenMC 0.14.1

**URL:** <https://openmc.discourse.group/t/debugging-openmc-0-14-1/4002>\
**Category:** User Support\
**Created:** [March 4, 2024, 10:40am UTC](https://openmc.discourse.group/t/debugging-openmc-0-14-1/4002 "2024-03-04T10:40:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![riwa](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/riwa/32/3218_2.png) [@riwa](https://openmc.discourse.group/u/riwa)\
**Post date:** [March 4, 2024, 10:40am UTC](https://openmc.discourse.group/t/debugging-openmc-0-14-1/4002/1 "2024-03-04T10:40:05Z")

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Dear OpenMC community!

I have a very general question

(its in the end related to my previous post ([problem-with-openmc-meshsurfacefilter-openmc](https://openmc.discourse.group/t/problem-with-openmc-meshsurfacefilter-openmc-hangs/3813)) but this didnt get much feedback).

How does one debug OpenMC when the regular means run out (i.e. increasing verbosity or running in debug mode)?

Today I ran into a similar issue then above with a simulation the uses `openmc.MeshFilter`.  
The simulations just hangs on batch 28 forever (the point where this occurs changes with the seed used - but doesn’t help furher)

Is it not recommended to use Meshes at all?

Any leads I could follow?

Best  
Richard