Comfy-Org/ComfyUI · error · ValueError

Unsupported blend mode: {mode}

Error message

Unsupported blend mode: {mode}

What it means

Error "Unsupported blend mode: {mode}" thrown in Comfy-Org/ComfyUI.

Source

Thrown at nodes.py:1520

        samples_out["samples"] = samples_blended
        return (samples_out,)

    def blend_mode(self, img1, img2, mode):
        if mode == "normal":
            return img2
        else:
            raise ValueError(f"Unsupported blend mode: {mode}")

class LatentCrop:
    SEARCH_ALIASES = ["trim latent", "cut latent"]

View on GitHub (pinned to 1c6d8d45b3)

Solutions

1. Select a supported blend mode.

When it happens

Trigger: Thrown at nodes.py:1520 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Comfy-Org/ComfyUI@1c6d8d45b3 (2026-08-14). Data as JSON: /api/errors/4f6e4536a09e3cc6. Report an issue: GitHub.