Segmentation fault - where to look?

[ullix]

My program runs well, but recently - every few hours - gives me a crash 
with:

*"Segmentation fault (core dumped)"*

This is the only info printed into terminal. I believe it has to do with 
PyQt (Python 3.10.12, PyQt 5.15.10), though ...

I have no idea how to uncoder the problem. Is there any guidance 
available somewhere?

And what is "dumped" and whereto? I don't see any output anywhere.

ullix
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