Some RVC models cause IndexError: index -1 is out of bounds for axis 0 with size 0

[makkor-git]

Most RVC models work just fine, but some of them cause pipeline to break with the following error.

Traceback (most recent call last):
  File "C:\AICoverGen\src\main.py", line 291, in song_cover_pipeline
    voice_change(voice_model, main_vocals_dereverb_path, ai_vocals_path, pitch_change, f0_method, index_rate, filter_radius, rms_mix_rate, protect, crepe_hop_length, is_webui)
  File "C:\AICoverGen\src\main.py", line 201, in voice_change
    rvc_infer(rvc_index_path, index_rate, vocals_path, output_path, pitch_change, f0_method, cpt, version, net_g, filter_radius, tgt_sr, rms_mix_rate, protect, crepe_hop_length, vc, hubert_model)
  File "C:\AICoverGen\src\rvc.py", line 150, in rvc_infer
    audio_opt = vc.pipeline(hubert_model, net_g, 0, audio, input_path, times, pitch_change, f0_method, index_path, index_rate, if_f0, filter_radius, tgt_sr, 0, rms_mix_rate, version, protect, crepe_hop_length)
  File "C:\AICoverGen\src\vc_infer_pipeline.py", line 571, in pipeline
    self.vc(
  File "C:\AICoverGen\src\vc_infer_pipeline.py", line 424, in vc
    npy = np.sum(big_npy[ix] * np.expand_dims(weight, axis=2), axis=1)
IndexError: index -1 is out of bounds for axis 0 with size 0

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\gradio\routes.py", line 442, in run_predict
    output = await app.get_blocks().process_api(
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\gradio\blocks.py", line 1392, in process_api
    result = await self.call_function(
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\gradio\blocks.py", line 1097, in call_function
    prediction = await anyio.to_thread.run_sync(
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\anyio\to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\anyio\_backends\_asyncio.py", line 2144, in run_sync_in_worker_thread
    return await future
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\anyio\_backends\_asyncio.py", line 851, in run
    result = context.run(func, *args)
  File "C:\Users\USER\.conda\envs\aicovergen\lib\site-packages\gradio\utils.py", line 703, in wrapper
    response = f(*args, **kwargs)
  File "C:\AICoverGen\src\main.py", line 316, in song_cover_pipeline
    raise_exception(str(e), is_webui)
  File "C:\AICoverGen\src\main.py", line 83, in raise_exception
    raise gr.Error(error_msg)
gradio.exceptions.Error: 'index -1 is out of bounds for axis 0 with size 0'

Links to the models that caused this error:
https://www.weights.gg/models/clqhr3pe300773waybjufj7zh
https://www.weights.gg/models/clm739ivo1x19cctcapjlft57