Recent update... again...

### Custom Node Testing

- [x] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

To get regular art generations.

### Actual Behavior

A big black grid with nothing in it after just one fix to the prompts and a generation of the same mass number.

### Steps to Reproduce

Just generate after making adjustments to the prompts. Doesn't matter which one, it does it with both positive and negative prompts.

### Debug Logs

```powershell
Don't know where to look for that.
```

### Other

_No response_

No source file, test, or debug log is identified. Start by reproducing the black-grid result with custom nodes disabled, after changing both positive and negative prompts, then gather the missing debug logs and compare the generation behavior. Done means identifying why regular art generations produce the empty grid and confirming that adjusted prompts generate normally.

Written by the indexing model from the issue text.