# Exceptions in Slicer in kernel 6.0

**URL:** <https://discourse.slicer.org/t/exceptions-in-slicer-in-kernel-6-0/25808>\
**Category:** Support\
**Tags:** exceptions\
**Created:** [October 20, 2022, 12:50pm UTC](https://discourse.slicer.org/t/exceptions-in-slicer-in-kernel-6-0/25808 "2022-10-20T12:50:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alex\_Vergara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/alex_vergara/32/15205_2.png) [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Post date:** [October 20, 2022, 12:50pm UTC](https://discourse.slicer.org/t/exceptions-in-slicer-in-kernel-6-0/25808/1 "2022-10-20T12:50:07Z")

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When I moved my linux system to use the new kernel 6.0 I started noticing a lot of exceptions like this one.

```auto
QVariant::save: unable to save type ‘PythonQtSafeObjectPtr’ (type id: 1132).

```

Some extensions don’t worked anymore (SlicerRT, SlicerElastix, probably others but not yet tested)

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [October 20, 2022, 8:51pm UTC](https://discourse.slicer.org/t/exceptions-in-slicer-in-kernel-6-0/25808/2 "2022-10-20T20:51:10Z")

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Can you add breakpoint into the Qt logger in CTK to see where this message comes from?

What do you mean by not working? Crashing, hanging, modules not appearing, computing different results, rendering issues?