Edit config.yaml Segmentation fault #3165

Is there an existing issue for this?

• I have searched the existing issues

Operating System

Ubuntu 24.04.3 LTS (Noble Numbat 🐿️)

DeepLabCut version

3.0.0rc13

What engine are you using?

pytorch

DeepLabCut mode

single animal

Device type

NVIDIA RTX 4000 Ada Generation

Bug description 🐛

When the "Edit config.yaml" button is pressed and I try to change an entry of the config.yaml (e.g., dotsize), the GUI crashes and there is a seg fault.

Steps To Reproduce

1. Activate conda environment with deeplabcut
2. Start DLC GUI from command line: python -m deeplabcut
3. Use "Load Project" button to load a project (alternatively, make a project)
4. Click the "Edit config.yaml" button (available on tabs Manage project and Analyze videos)
5. Double click on any value in the Value column to induce a seg fault

Relevant log output

(DEEPLABCUT) gianmarco@roadrunner:~/Repos/gianmarco_useful_code/animal_tracking$ python -m deeplabcut
Loading DLC 3.0.0rc13...
Starting GUI...
QPixmap::scaled: Pixmap is a null pixmap
_pythonToCppCopy: Cannot copy-convert 0x5816e022c880 (NoneType) to C++.
_pythonToCppCopy: Cannot copy-convert 0x5816e022c880 (NoneType) to C++.
Segmentation fault

Anything else?

Let me know if it would be helpful for me to make a PR!

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