Parler-TTS Errors

When running the Parler-TTS example commands it ends with the following error:

```
Error: index-select invalid index 1024 with dim size 1024
```

It works with CUDA though, but only as long as the default prompt is not changed. If it is changed the generated audio is incomplete.

It also crashes when choosing the mini model with the error:

```
Error: request error: https://huggingface.co/parler-tts/parler-tts-mini-v1/resolve/main/model.safetensors.index.json: status code 404

Caused by:
https://huggingface.co/parler-tts/parler-tts-mini-v1/resolve/main/model.safetensors.index.json: status code 404
```

Start by reproducing the Parler-TTS example commands in the issue, comparing the reported behavior with and without CUDA and with the default and changed prompts. Check the mini-model download request for the missing model.safetensors.index.json file; done means the reported index-select, incomplete-audio, and mini-model errors are resolved or clearly isolated.

Written by the indexing model from the issue text.