HiDream : black images - latest version

### Expected Behavior

generate images

### Actual Behavior

Running latest version of CUI. Can anyone tell me why the HiDream example workflows just generate black images?

if it helps, i am seeing in the console:

```
... RuntimeWarning: invalid value encountered in cast img = Image.fromarray(np.clip(i, 0, 255).astype(np.uint8))
```

### Steps to Reproduce

just run example workflow

### Debug Logs

```powershell
... RuntimeWarning: invalid value encountered in cast img = Image.fromarray(np.clip(i, 0, 255).astype(np.uint8))
```

### Other

_No response_