lmstudio-ai / lmstudio-ai/mlx-engine

Nemotron 3 Nano MLX no longer loading as of 1.5.0 (and 1.6.0)

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Dominant language
Python
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Description

It loads in 1.4.0, it does not load in 1.5.0 nor in 1.6.0

```
🥲 Failed to load the model

Failed to load model.

Error when loading model: KeyError: '-'
```

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce loading Nemotron 3 Nano MLX with versions 1.4.0, 1.5.0, and 1.6.0, starting from the model-loading entry point and the reported KeyError: '-'. Done means the model loads successfully in the affected versions without the reported error.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
machine-learning
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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