got a blank image during inference

[ifastcc]

Thank you very much for your excellent work. I've spent some time studying and learning from it. However, I've encountered a problem that I'd like to ask about. While testing with your publicly available generator.pth model, I've found that it sometimes generates blank images. Moreover, for different style_img, it might produce blank results on different predicted fonts. Could you please explain what might be the cause of this?