Two bugs:
1. _DiscriminatorR used channels=32 but the BigVGAN pretrained discriminator
checkpoint has channels=128. All convs in _DiscriminatorR now use 128,
matching the checkpoint architecture so state_dict loads without error.
2. BigVGAN trainer OOM: SelVA generator and other ComfyUI models remain in
VRAM during training (~90 GiB used). Add unload_all_models() + cache
flush before the training loop to reclaim VRAM headroom.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
EthanfelandClaude Sonnet 4.6
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