GPT Image 1 to GPT 4o: "Invalid MIME type. Only image types are supported."

**Bug**
GPT Image 1 seems to be incompatible with the VLM support on Chainforge like with the Media Node.

**Reproduce**
Steps to reproduce the behavior:
1. Load PromptNode and select GPT Image 1 as a provider
2. Craft prompt and generate images
3. Pipe images onto another PromptNode hook with GPT 4o
4. Run second PromptNode

**What you would expect**
I would expect the PromptNode to be able to handle the image just as it does with the MediaNode. Instead I get the error: `"Invalid MIME type. Only image types are supported."` which is most probably a formatting [issue](https://community.openai.com/t/use-base64-encoded-images-or-urls-within-prompts/896015)

**Screenshot**